He's got a point to a extent, but he's being a elitist sperg at the same time, so it's more proper to say he's making a mountain out of a molehill and is trying to be a, pardon the curse, a dick about it.So... Is he being the villain of the story?
Another way to put it, he's getting overwhelmed with bug requests from linux users due to a bad user made scripts, made his own installer script but tried to lock down the installer (NOT the program ittself, the installer script, AUR and arch don't care if you put a script in for proprietary software for the most part unless it's a virus or something) with a proprietary license, which goes against the AUR's modus operandi and breaks their TOS, so they denied it.
Now he's getting angry over arch linux not letting him do it his way when it's one of the simplest and childish complaints to have, i should point out that private corperations also use the AUR and don't make their aur script's proprietary, as there's literally nothing to hide in the install script unless you want to add a virus or spyware.