That's exactly the situation I described in my long comment a second ago. It's also worth point out that it's not always as simple as reviewing/testing PRs and accepting them (which also takes time). Sometimes prioritizing a PR, especially if it is not something that was on the roadmap to be released just now, means having to write a bunch of new code and features to make it work.

There arent many places that would allow you to contribute in your work time. Stop these guesses about the guy and quit attacking him for those stuff you invented.