Far from me to defend the whole mpv team[1], but the dev in that thread is a ghost (deleted user). I remember them, they were always rude and eventually got kicked out of the project and loudly complained about “being removed from the project [they] created”. I never found the exact reason why, though I can’t help but think the attitude had something to do with it.
[1] Some are quite nice and competent. Others are exceedingly rude and will e.g. jump on an issue that had thus far been entirely cordial just to, without provocation, insult users for using whatever OS they don’t like.
The last issue that caused them to leave was their desire to move mpv to their own build system, which they believed they could write in a weekend. Other mpv developers thought that was a stupid idea and argued in favor of something more standard, such as meson. That was the last straw for both sides.
> Other mpv developers thought that was a stupid idea and argued in favor of something more standard
That doesn’t seem right either. I just read the whole PR thread and I see a bunch of users arguing for it, not other maintainers.
The maintainer was certainly controversial and I found several commits and bad decisions which look to be almost universally hated, but it’s not clear to me this specific problem was what caused them to quit or that it was motivated by other maintainers.
If you could provide a source for your claim, it would be appreciated.
[1] Some are quite nice and competent. Others are exceedingly rude and will e.g. jump on an issue that had thus far been entirely cordial just to, without provocation, insult users for using whatever OS they don’t like.