While I get annoyed when established devs put their projects up on KS (looking at you Peter Molyneux), I kind of see KS as US protected speech, you might not always agree with it, but people have the right to pretty much say what they want short of doing something illegal. In that light, I say let whomever put their projects up on KS and let the people vote with their wallets. If the pitch is good and people like the vision, they'll fund it, regardless of source.
In this case, it's actually a good way to get to get into the game on the cheap. $25 buys you 6 months of access to the game, which normally costs $10/month. And as an established dev with a long-running game that builds upon an existing product, this is a very low-risk KS, which may have appeal to some people. Also, this is a very small developer that sells directly to gamers, not a big publishing house. If there was ever a case for an established dev to use KS, this is probably it.
If Russia stops fighting, the war ends. If Ukraine stops fighting, Ukraine ends. Slava Ukraini!