In a sense, though, that discussion is entirely on topic. What Microsoft has done here has been a reaction to Steve Jobs utterance of the phrase "post-pc". They have been frantic to counter that frame ever since, insisting that they can deliver a tablet that is also a PC, with "no compromises".

Well, you can't avoid compromises. The best you can do is choose which ones you will accept. And if you don't choose, then unexpected tradeoffs will be thrust upon you.

This customer confusion over RT is just fruit from that seed.