I'd cut them some slack here. They had to get their team out of there first—with the way Putin is running things, they sure as hell couldn't announce they were leaving Russia until everyone who was going to follow them was out of there.
On the day of the invasion they tweeted a statement condemning the attack, and within two weeks announced they were leaving Russia.
https://twitter.com/jetbrains/status/1496786254494670851?lan...
https://blog.jetbrains.com/blog/2022/03/11/jetbrains-stateme...