I strongly disagree. There should be surprises for the pcs from time to time. They shouldn't know everything about every foe they might face. I love the return of actual resource management beyond healing surges and "how can we spend five minutes resting?".
Getting rid of "gotchas" means no more lurkers above, mimics, succubi, cloakers, doppelgangers, shapechanged oni, shapechanged dragons, shapechanged fiends, shapechanged anything, gelatinous cubes, traps and tricks.
Screw that! I mean, it may work for you, and that's fine, but let's just say that it definitely doesn't suit my playstyle.