It does not matter whose is the project. Many, many companies uses that framework and for them Eran like a the goose that lays the golden eggs. That is the key. Who is going to pay anything for that they can get for free.
Someone smart ? It's fairly decent way to ensure a critical piece of your infrastructure will see continued development.
Maybe those companies don't need continued development? If it's already a critical piece of their infrastructure that must mean it's at least good enough (and probably better). And if things blowup, or a "must have" feature is identified then they can always pay Eran his hourly rate to get what they want when they want.