I think you need to look more closely at McInnes' comments.
Yes he said they were disgusting, but he also implied there was an agenda hence questioning the integrity of the officials.
Watt didnt do that. He just said it was tge worst VAR decision ever.
McInnes' comments were also in relation to a game he was not involved in.
He was also the manager aka "leader" of his club at that time, therefore in a position of trust, if you will.
The 2 cases are NOT comparable.
The fact that the individual committing the lesser offence received the greater punishment, might be described as "disgusting".
Just my opinion mind you.....