Whatever pushes people closer to Godot. Seriously though, the only thing I see that Unity has that Godot lacks is a rich asset / resource store, with lots and lots of options for whatever you want to build your game with. I would think the maintainers could produce such a store to facilitate funding the project and even provide their own offerings like code snippets for specific game types and then keep 100% of those proceeds (aside from payment vendor fees) towards the project.
It's either that or someone, somewhere with free time and energy builds their own and donates to Godot for every asset bought.
I really like Godot but I'm only a dev, I don't have time to design my own graphics, I just want to code different ideas to see how they go and go from there, I just want to download a few assets and get cracking, and right now that is far easier to do with Unity than it is with Godot it seems like. I think Godot adopting a Unity importer might help significantly.