As someone who WAS one of those old school players, we definitely would have loved this version- and do.Not sure I agree that modern mechanics (as published by WotC) are what the old-school dungeon crawler players would've asked for. If this forum is any indication, they are absolutely NOT.
Also I disagree that modern mechanics are somehow out of sync with the way that RP has become more important. Personally I think they work very well and game designers have generally (though not always) done a great job at matching game mechanics to the modern style of DnD.
The grumpy old DM's who thought their job was to crush the dreams of players, frustrate them at every turn, kill as many as they could, and be as harsh and pernsnickity with rules as possible notwithstanding. They were annoying then, and are annoying now.
It's amusing to hear how much they hate the modern versions of the game, lol.