Honestly, I think fan opinion has absolutely nothing to do with the way wipEout HD is being created. HD was originally planned as an in-between project to tide over the wait until the 'real' PS3 wipEout game. So, in order to be able to deliver quickly, it only makes sense they used assets from Pure and Pulse and beefed them up. However, since that 'real' wipEout PS3 game has obviously been put on ice, they instead were tasked with getting as much quality out of the project they already started, which is wipEout HD.
And why do you feel that 2097 was just an overhaul of the original wipEout?! It's a completely different game, not only from a graphical point of view, but also gameplay-wise, there were a ton of changes made. At least more changes than an EA franchise gets within 5 iterations ;)