Azem is tricky to write in general because players are fiercely protective of their characters. I'm actually surprised at the liberties that they took with Azem during Tales of the Shadows. Not that I'm complaining, being fully supportive of a trickster rabbit backstory, and I'm sure Emet's popularity got quite a boost by facepalming over Azem's antics with Hyth giggling in the background.

You're always going to find some people who that concept doesn't mesh well with. Which is why, I suspect, Venat ended up being the resident mischief-maker on the Elpis team instead, with the player character having the option to play either more heavily or less heavily into that. I do hope that Azem has at least a cameo in the final part of Pandaemonium, because I really do want to see Elidibus' interaction with them. There are a few open plot references dangling from 5.3 as well as the 'truth' that fills Elidibus' heart just before he sends you to Elpis, and I want to see if anything is to be done with them.