To their point though, I largely agree with this, "The only thing I’ve found to be effective at dealing with competitors in early stage companies is to ignore them."
Did you ever get a chance to use their product?
This is something that really motivates me about offline first/OSS stuff though. It will be inconvenient for those who adopt if we have to shutdown but it's still possible to use floro without needing our servers. You will end up having to host your own though.