Cronoberg Rick and Morty were introduced post credits and came from a universe where they accidentally made every cronoberg into humans.

That's not correct.
Rick and Morty went to a reality where a human Rick and Morty died.

I had to look this up to find an answer, which mainly involved me asking the Steven Universe Wiki.
As I've been told:
"Estelle discussed this at Comicon. Apparently Rebecca decided that Garnet's style of leadership means that she NEVER asks questions. NEVER."
Which is kind of stupid, because there's no reason anyone…

Well actually, they had something planned for Woodhouse's disappearance for Season 7. Right after Season 6 ended they said they were going to deal with that scenario in season 7.
Then I think Woodhouse's voice actor died shortly after that they said that, as he died in 2015.

Why don't you have a seat right over there?

Yea but that kinda seems to be Bob from the kid's perspective.

She wasn't mad at him.

The author is confirmed to have 6 fingers.