I agree with most of what you wrote here, except this.
How can Apple continue to justify that the flagship Computing device it sells does not feature it's highest speed data interconnect?
As pointed out it isn't a flagship product. Biggest and heaviest isn't even flagship in naval terms.
Apple is killing off firewire.
No, the marketplace is killing off Firewire. Apple is largely just reflecting what most folks are buying and system vendors are deploying.
The 3rd party companies that make the external devices for content creation pros are all shifting to Thunderbolt.
The vast majority of these vendors all sold PCI-e cards. The thunderbolt devices are pragmatically these same PCI-e cards wrapped in an external container. If you need the functionality it is availble in two forms. The Mac Pro already takes the PCI-e card form factor of their solutions. Most shops oriented around the Mac Pro already have them. That makes those Thunderbolt form factor devices redundant and better matched to the Macs without PCI-e slots.
For example, Blackmagic Intensity.
http://www.blackmagicdesign.com/products/intensity/
the Intensity Pro (PCI-e card ) and Intensity Extreme (Thunderbolt ) take the same breakout cable. There is no in bandwidth. This pattern repeats itself for the large majority of offerings in the A/V capture space.
The huge problem is the many folks fixate on storage which is slightly different due to the connector being nominally hidden from view. The TB storage solutions are PCI-e eSATA/RAID card solutions repackaged. The external eSATA/SAS connector disappears inside the box. However, the SATA/SAS connect is still present on the drives.
So for example the BlackMagic Cinema camera (
http://www.blackmagicdesign.com/products/blackmagiccinemacamera/design) takes an internal SSD drive for storage. That drive moved to a SATA enclosed connected to a Mac Pro is perfectly viable "sneaker net" solution to the transport of that data.
Similarly a Seagate GoFlex with a Thunderbolt and USB 3.0 connector could be used in a "sneakernet" set up for the core SATA USM modules being moved around.
Similarly a
Sure you can buy audio or video boxes that use firewire, and will work just dandy with a current Mac Pro, but why would you buy something that is already obsolete?
It is far more likely with higher end A/V capture cards that it is proprietary,
non standard, connectors that you are buying. This issue that primarily matters is having that particular vendor's connector. I think you are looking at the wrong end of the box.
Instead of asking what problems does TB solve, ask how likely it is that Apple will continue to put firewire on anything?
This is just misdirection. First, these are all tools. Matching the right tools to the right job is the primary task to be undertakend. Second, there is a better than 50/50 chance that the Mac Pro will have Firewire. The Mac Mini has it and has plenty of room on the Mac Pro edges for at least 2 Firewire (there are 4 ports now. Dropping down to 2 would actually be simpler and more cost effective to do than doing the current 4. ). Third if there was some huge driving market demand for combo USB 3.0 + Firewire card they would pop up for a PCI-e slot enabled Mac Pro.
You also have to consider that folks are already using TB drives in the field,
Two factors. First, in the context of current Mac Pro ( and competitive workstations ) user base which is the larger group.
Group A : have PCI-e cards that connect to SATA standard drives
Group B : have drives where the only way to extract data is solely from a TB connection.
The answer should be relatively obvious. Retreating into the very small corner case where the importance of Thunderbolt is overinflated doesn't justify Thunderbolt in the overall market.
Second, there are no pure TB drives. There are SATA drives inside of TB enclosures but there are not TB drives. So you do run into an issue if the embedded SATA/RAID controller writes the data onto the standards based SATA drives that you cannot read the data on the drives if those drives are moved to another enclosure/adapter. However, if the data is written in a standard readable format the drives themselves can be read by a Mac Pro with a suitable adapter and/or drive sled. So the root cause issue on something like a Promise TB enclosure data being encoded in that controllers RAID layout format is the root cause issue. Not the lack of Thunderbolt.
Anyone who captures data into a proprietary format suffers the lock-in of that format. But that is a choice. There is little to no requirement that lock-in formats be used in disk file layout.
The Mac Pros are helpless!
It isn't the Mac Pro's that are primarily constrained. If problem solving is reduced to matching the logos on the connectors on the cables to the one's on the sockets on the box then yeah there are limitations.