Way too much Kayne--the video "introducing" him is too long/obvious, and if you need to remind the audience about his "Imma let you finish ..." episode (with a dumb re-enactment no less), it's a sign he's not well-known enough to play the villain. Actor does a good job, but just not good material.
The political stuff did feel largely toothless. There's one funny Trump joke, and it's killer, which is what disappoints me, clearly the writer is capable of biting satire when he's allowed to let loose. And yeah, the horny Bill Clinton jokes feel ancient--it's been two decades since they were relevant. Does the B&T writer moonlight for Orlando Kia?
Characters appear for no discernible reason other than they had costumes left over. Looking at you Daenerys, and especially Dr. Who.
On the plus side, again, the movie parody scenes were great--Avengers in particular kills. The Disney jokes hit the mark, at least among theme park fanbois--with this and the superior Carnival of Carnage, I'm a little concerned about the trend to write shows aimed directly at everyone on OU and HHN Nightmares, not the general public. I enjoyed the dance numbers, particularly the finale.