Yeah, if there were seasons after the marriage happened, we'd absolutely see an episode about that. PC would get absolutely no shit from it from her peers, Bojack would call it out and point out that the "power imbalance" (He would use the air quotes) PC had in that situation is the exact thing that got him dragged. PC would ignore the comment, because that's what she does in the first half of episodes, then she'd have a frank, honest discussion with Judah about it after she has a flashback to her time as an assistant. Judah would admit that the situation always has potential for impropriety, but he never personally felt pressure to be with her and that he just loves her. PC does that tiny little giggle that sounds like she's saying "hmm" and everything works out by the end of the episode, because that's what happens if you aren't Bojack or Diane.
Meanwhile, Todd tries to learn how to drive a biplane. He accidentally falls headfirst into a skywriter's plane and kicks it into gear, resulting in him doing hundreds of loops above Hollywoob. After landing, he receives a check from a toy executive who mistakenly thought Todd was advertising for Slinkies. Slinkies prove to popular for the rest of the season, background characters seen with them all the time.
Also Bojack accidentally injures Vance Wagoner when he impales him with his horn on the set of Horny Unicorn, and doesn't know how to handle having harmed yet another life, despite all of Hollywoob cheering him for it.