At least in feddit (main German instance) there were a lot of posts offering up financial support, but it was declined because it was not needed.

I think especially the smaller communities wouldn't have a problem coming with funds for hosting. Donations for lemmy developers have also increased significantly since the main exodus.

I get your scepticism, but I think the lemmy community for the most part wants this thing to "succeed" and is willing to chip in a reasonable amount.