Someone correct me if I am wrong because I can't check now, but isn't this still listed on Steam?
Obviously dev has no obligation to communicate shit here. And since they are pausing payments on Patreon, they can ignore that side too.
But if people can still purchase it on Steam, it is a problem. Steam is a marketplace, not the vague support pledge Patreon is. People paying for early access for a game they assume is in active development, obviously wouldn't have if they had strong evidence it wasn't. I think it's the reason Steam is rolling out its own version of "abandoned" for EA games.
And it's why this tag is needed here too, this site being the most prominent platform for promoting these games. It's a warning to new people who might want to spend money.