Coventry City v Everton 1978 (I think).
Everton attack, the linesman flags but the ref waves play on - Bob Latchford scores for Everton the goal is given.
Before the kick off, Terry Yorath ( "Terry is our leader") speaks to the ref. The ref eventually awards a free kick to us.
After the game Terry was interviewed. He said that he'd spoken very politely to the ref saying " I think you thought the linesman was flagging for a foul on the Everton player. I think that he was flagging for offside. Would you mind checking with him?"
He checked and Terry was right.
So one isolated incident, over 30 years ago, justifies hordes of players in the refs face?
Besides, the incident you refer to was by the captain (?) an dealt in a polite manner, in rugby, the ref talks to 2 people on the pitch, both captains (not literally) and it's done in a civilised manner.
I was aware there are some incidents that happened, but they are so rare and long ago, there're irrelevant.