4e D&D doesn't feel like D&D? No news here. 4e is D&D in name only. This is already quite clear in what is known and will be indesputable when the final rules are released.
As to Wotc not allowing the game's storied designers have a look at the 4e rules? No news here. Like JD most would not be gushing about 4e's feel. Most would be delivering the message JD delivers - 4e doesn't feel like D&D - ie 4e is D&D in name only.
Of course, 4e designers may want all the "glory" for themselves, as well. A case of penis envy -
http://en.wikipedia.org/wiki/Penis_envy - on the part of the 4e designers vs the 3e and earlier designers.