Interestingly Kitt is the one who reached out to the showrunners seeking a role, he's a big fan of the the show! we got a clip of him saying he's there to seduce Yasmin, so who knows???
On your second point, this is a HBO show, not HBO Max. When they dropped all of it at once on Max it was because it was the pandemic and HBO Max being a new streamer at the time didn't have enough new content on the platform to satisfy users. WB was trying to put all their backing on HBO Max at that time. Once the pandemic softened there was no need for Max to borrow shows from HBO. HBO has always been a week to week channel