Earlier quoted context omitted.
But who will keep them updated and what incentive they would have? That's I can't imagine. Bit vague.
Who keeps open source projects maintained and what incentive do they have?
I think ML is more akin to open source hardware, in the sense that even when there are people with the relevent skills willing to donate their time for free, the cost of actually realizing their ideas is still so high that it's rarely feasible to keep up with commercial projects.