Yes, RPGs are getting dumbed down to an extent.
In many, but not all, cases, this makes the game more accessible, more console-friendly, and results in something which is still a fairly good game.
Would a few stat-heavy old-school RPGs be a good idea? Yes. Would they be possible on a console? Strangely, I'm going to say yes. Dragon Age is proof of concept. Basic as many of its RPG elements were in comparison with the more complex RPGs we used to see, they were very important to the playstyle and effectiveness of the character(s), and there was room to expand the RPG elements without sacrificing playability.
Unfortunately, Dragon Age 2 isn't looking promising in its followup role. I hope they expand on the traditional RPG elements already present, and emphasise their importance as well as the responsivenes/action focus which has been emphasised in most interviews and information I've seen so far. Not that prettying up the action and improving responsiveness of commands is bad, but in the past, that usually makes skill with the controls more important than developing your character's stats, equipping the right abilities, and all the other elements which make traditional RPGs what they are.
Of course, on the other side of the equation, I think blurring the lines between the genres is a good thing for shooters and action games as well as RPGs - there are plenty of people who want more intelligent shooters, or more intelligent hanck-and-slash games, and even more who like the stories of RPGs, but can't be bothered with all the complicated stuff they'd have to do to follow them. The problem comes when everyone forgets there are still extreme ends to the scale as well as a middle ground.