I wonder if the players/coaches need to be swept up on the LOTG. I am guessing that is yes.
I personally like the idea that, ex-players/coaches are given appropriate training in the LOTG and are given a formal platform to provide feedback.
As they might drive change at the appropriate level. I was listening to the MOTD crew blaming VAR for ruining the game by disallowing a goal for accidental handball where the striker hadn't made himself bigger. Now we all know, that isn't VARs fault, that is just what the LOTG are. However, your average Joe or even your experienced pundit doesn't know this. Because they don't really care.
So you need to give them a platform to raise their complaint 'why are we removing goals from the game', then have the people in the know, take it to the appropriate body.
End of the day it is an entertainment business and some of the points are valid ones.