Beyond love, what you prefer ? Pay 100K USD, or put at risk your 500M USD project ?
Edit: if the engine is not maintained, there can be compatibility issues, it can go abandoned and lack new features, etc. It's the technical pillar of the product, like Unity.
You seem like a bitter person. I hope you find love.
Is it so hard to accept someone else might give away money for a charitable reason rather than because of fear?