You'd have to assume that Apple execs are complete idiots if they parse modular as "keyboard/monitor/computer" based on the feedback they've gotten from the press and their pro customers.
...but read the quote I posted. Three types of systems: notebooks, all-in-ones and modular, and they make them (present tense). Ergo, by their definition, the Mac Mini and Mac Pro cylinder are modular systems.
Meanwhile, actions speak louder than words and they've just announced an "iMac Pro" which is firmly aimed at those pro customers and, guess what, it lacks even the minimal upgradeability of the existing iMac 27" and Mac Pro,
In another part of that interview they directly mention the user complaints out there, specifically about "expandability" and "upgradeability".
I don't see anything in the interview to say that they don't still regard Thunderbolt as the answer to "expandability". Federighi uses the word twice - on one occasion he's talking about why people don't want touch screens, the other he's saying why it might be a good idea not to have a RAID array in the box.
The uncomfortable truth is that, these days, "expandability and upgradeability" equates to "10 year lifespan" and would probably wreck the Mac business model - which relies on the income from premium-priced hardware to fund the development of a proprietary "free as in beer" OS and software suite (unlike Windows box-shifters who don't need to maintain their own operating system).
Do they have to specifically state it's going to have PCI slots and support nVidia cards?
Er... let me think... this is a hard one... let's see... YES!
Seriously, if it was going to have PCIe slots and support third party graphics cards - something that would allay everybody's concerns at a stroke - why wouldn't they have said so?
Also, if you, personally, wanted a nice MicroATX or MiniITX compact tower with your GPU of choice, you could get it tomorrow in Hackintosh form. Now, there is a whole laundry list of reasons why that is not a viable option - all of which boil down to lack of official support and using an unlicensed copy of the OS. There's no technical barrier that Apple couldn't fix in a couple of months. Now, bringing a product to market is always rather more complex than throwing something together in your back room, but I really can't believe that a company with Apple's resources couldn't have had an ATX/ITX Mac in the shops this year, if they'd wanted to.
Do you really believe Apple thinks it's a good idea to play word games with their highest end customers?
Really? Happy birthday for yesterday, by the way. Meanwhile, how would you like to own the Brooklyn bridge?
Maybe my interpretation is wrong, but that doesn't change the fact that the interview was very, very vague and carefully avoided any sort of specifics. You can always tell that someone is using, shall we say, carefully chosen words if (A) their job title is "Senior Vice anything" and (B) their lips are moving.