The reason I don't think it's all that in line with Diablo these days, though, is simply the pacing of the gameplay. You blow up screens of enemies at a time, and your deaths are often so fast that you're not really sure what killed you.
Yeah, that's why I don't care for POE anymore these days.
It is a classic Roguelike
Listen I get that Roguelike is basically a vaguely defined genre now, and though Torchlight 2 in a great game it's definitely not a "classic Roguelike".