Good interview. It's nice to see that they recognize some bnet elements could improve.
Also, monster ai seems pretty exciting from what he said. "On the monster side we did the same thing. We have this big list of categories, of things that monsters can do. There’s a heavy-hitter – a monster that does a lot of damage. There are tough monsters, there are fast monsters, there are monsters that I call “beehives” which are essentially summoners and things like that – they produce [other] monsters. There are monsters that do AOE [area of effect damage], then there’s about seven sub-categories of AOE: point-blank AOE is not as effective as ranged AOE; circular AOE is more powerful than line AOE"
I Hope the game is hard not only in a "too much damage" fashion, but also in a "i need an effective strat to bring this kind of monster down".