The West Brom manager, and referees

I've just seen their highlights on the Efl show.
Is there any wonder why managers and players and fans, get so angry these days with some of the refs baffling bad decisions.
I don't know if he got abusive though, because the ref gave him the red card.
You would think the standard of officials gets better and more professional, in the Championship and the Premier.
But to be honest, I don't think it does, and they just seem to be getting worse.