No matter what they did, you'd have a new excuse for why you won't pay.
But anyway, no, I wouldn't keep finding reasons. I donate to them every year already. Somebody asked if I would be willing to pay and my answer was "yes, but".
It would need to be improved because certain aspects of it suck right now, not only the error this post is about. They only need go as far as their forums and github repos to see the community feedback.
I think that we should all pay when asked for things which we find useful, even if they aren't perfect. If nobody else is offering anything, then we have to take what's being offered. When there's a market, more providers will begin offering their versions.
Their reply is 100% based on the content of your post.