I totally get being upset about the misleading posts and missed updates with no communication. If I was supporting this project I would have cancelled by now.
However, I don't think Patreon really comes with any promises or guarantees of receiving a finished product in a certain timeframe. I've always understood it more as support someone if you like what they are doing. This is why I would never sign up for any sort of yearly membership on there. I'm pretty sure refunds are solely at the discretion of the creator, so it's a good idea to never pledge more than you are willing to lose.
I also don't think it's fair to call this game a scam since they have probably put several hundred hours of work into it at this point. This game already has more content than many of the completed RPGM games I see on here. It's also 8-9 hours gameplay of story, puzzles, and custom minigames...not just stock RPGM combat and grinding to pad out the time like many games. I wouldn't be surprised at all if they've put over 1,000 hours into making the game so far.
That money would indeed go a lot farther in Ukraine, but if they successfully fled the country they probably had to do so illegally and may be dealing with more issues now. If they moved to a high cost of living country I could see it really hurting their motivation now when the $500 buys a lot less than it used to.
