That's why I was shocked to hear of BBC's deal with Microsoft to provide video content that was Windows-only. (until people complained and they had to make it more open)
In fairness to the BBC, when it announced this service to be rolled out, it said that a Mac-friendly solution was in the pipeline but would take time as OS X is a "propriety" system... unlike Microsoft's OS presumably.
As I said in the thread about the BBC/EC/Apple story, it sucks but it's hardly the first organisation that have told Mac users to wait - although you could be right about pressure put onto the Beeb. As pointed out in the other thread by someone else, the system used for this type of service by C4 is Windows only.... whether that will change remains to be seen.
If Apple has been a bit more helpful to the Beeb when it was offering streamed video/audio content in QT a few years ago, things might be a bit different now - from what I heard, more than a few execs were livid at Apple's high-handed unhelpful attitude leading to a few burned bridges although QT is used well within the BBC.
As to how pro/anti-Apple the BBC news site is, I would say its coverage isn't very good overall. Normally it's fairly positive, it does like running scare stories (e.g. exploding batteries, DRM-free iTunes issues) which its staff lack expertise to judge the merits of correctly (although I would say that's applicable to most of its technology stories). Also, more than one or two of the experts, lack expertise frankly - still at least Bill Thompson doesn't write a regular column anymore!