First, it's "hearsay." I'm not being a spelling nazi, it's just that as a lawyer seeing that so often misspelled is hurting my brain.
Second, in any context other than a court of law, reliable hearsay is fantastic evidence. Everybody in the world relies on it constantly. Society could, in fact, not function without it.
Third, how did you manage to flub a character build in 4E? I've been told that's just about impossible.
Fourth, speaking just for me, I'll try any new edition of D&D, just like I tried 4E. (We played through to 4th level.) I suspect many of the "disenchanted" will do so, assuming that there's stuff in the marketing and "hearsay" that doesn't completely turn them off.