However, I think I've managed to pin down the worst design choice of the entire update:
They put a Cavernous Maw right at the zone line for Konschtat Highlands!
I'm sorry, but this is worse than any mechanics tinkering or quest line nonsense. This utterly kills the aesthetic appeal of the game. This thing looks like a big ugly monster and you stick right at the spot where new adventurers from Bastok are going to zone in? What were you thinking? This is a gateway to endgame content, the least you could do is hide it out of the way like you did with the original Maws so players have to go out of their way to get to it. To me this screams "We are ignoring the possibility of new players", not to mention it utterly ruins the immersive atmosphere that I've come to love in this game.
I know the game is fairly old at this point, but there's no excuse for these shenanigans.