For me, it's sending warning bells that we're heading back to having players use 10' poles to probe each and every stone - that sort of "smart play in stupid situations" and "gotcha!" that always felt built upon "old-console-video-game"* principals
*I'm not really referring to
video games per say. I'm referring to a system where you are expected to have
play-troughs to learn about the different dangers : don't touch that door (you die). Run trough this corridor (or you die).
My experience of old-school D&D is of knowledge that comes from meta-game considerations earned through character "try and die" (as opposed to try and fail). The most painful parts were witnessing the attempts at justifying actions counter to character motivations that were required to "win" the dungeon... bad times...
I really, really don't understand the appeal of "old-school" - I
must be missing something pretty big, because a good many people can't seem to stop praising it (and often for encouraging a playstyle that I found it to prohibit...

)