Patreon arguing that they were just following the rules, when they themselves created the rules and can rewrite them arbitrarily, is absolutely piss-poor form in a humanitarian crisis like this.
I am not too aware of this account. How much money was moving through Patreon to the Ukrainians? Is it the majority of the weapons funding they needed?
Vs. honesty would open a Pandora's Box of internet outrage & arguments about morality, the roles of corporations in modern society, whether Patreon should stand fast if the GRU (Russian military intelligence) sends 'em death threats, how close to funding an overseas armed conflict they (and the banks they use) can legally come, and more. All with Patreon stuck in the middle of that sh*t-storm, collecting $0.000 for each & every enraged comment, reaction, DDoS, etc. aimed at them.
When there are little kiddies in the room, it just works better to say "Because Santa Claus...". You get far fewer screams and tears and arguments from the kiddies, and the grown-ups still understand.