That old chestnut about past editions of D&D paying verisimilitude heed is bunk. D&D has never fostered verisimilitude, from its assumptions that all inhabitants of the world had a PC class (an assumption not explicitly dumped until D&D 3x) or that all members of a given race possess identical attributes to the ideas that armor makes you harder to hit (rather than damage) or that physical health never declines but, rather, gets continually stronger as you age (ostensibly addressed in D&D 3x, but not satisfactorily so IMO).
People who actually want verisimilitude in RPGs have historically not played D&D for these and other reasons. The idea that, with the advent of D&D 4e, D&D is suddenly not a realistic physics engine is laughable at best and a deliberate strawman at worst. This isn't anything new and you'd have to knowingly ignore 30+ years of D&D trampling verisimiltude to death in order to believe it. That seems like a lot of work to me but, apparently, some people are that invested in not liking the new edition of the game.