I'm glad YuYu is enjoying Crystal. I disliked it when I first watched it back when it was released, but rewatching it with someone who had never hadn't ever watched Sailor Moon made me appreciate its good points and I've grown to enjoy it a lot. I think as it stands, Season 2 is my favorite so I'm glad others appreciate it, too. It's a very fun thread to read through.
I've also enjoyed you going over what has been removed. I just want to add something that might explain why Crystal removed the violence.
There was an interview with Takeuchi for Da Vinci Magazine on February 2021 where she was asked a fluff question about which parts of Sailor Moon were particularly memorable to her. Takeuchi's answer was far from fluffy, however, she took the opportunity to go on a tangent about the darker scenes in her story. Her answer was this:
"Sailor Saturn is the Guardian of Destruction, and so I drew her scenes to be as strong as destruction itself. But after the series, there was a time during which I couldn't face my work for a while, because I was facing reality: natural disasters, earthquakes, terrorist attacks in Japan and abroad, all this in the news all day long. I had to face reality and reflect on the fact that I had drawn these things too lightly."
The magazine added pictures of Sailor Saturn destroying the city next to her answer.
Now, she's not mentioning any specific thing she drew besides Saturn destroying Tokyo, but I think her answer is still telling as to why she'd want to tone down the gorier panels she drew in other arcs. That's why I wasn't surprised when Eternal toned down some gore, and I'm expecting Cosmos to do so as well.