Almost agree with all of that Blakey.
Agree about the "intent to injure" this shouldn't come into it. I've seen a player brake a leg when they've swung for the ball, missed and followed through into the oppo player's foot (like Coleman's leg break a couple of seasons ago). Son shouldn't have been sent off against Everton.
I think Sterling should have gone but not because I thought it was a straight red but for the sake of consistency. That's to say that there have been two or three tackles like that this season already, all went to VAR and all of them decided it was a red. (Personally, the tackle in itself was a classic late tackle, happens all of the time at any level of the game, 100% a yellow card but in Sterlings and all the others, there wasn't anything deliberate other than a genuine attempt to get to the ball, but it was late. It wasn't reckless but that's bye the bye).
I hate VAR, have done so even before it's introduction and this season has reinforced everything I hatted about it. But if it's here to stay (I don't see a reason for it to remain) then perhaps a solution is to have permanent VAR ref's, so those sat at VAR HQ only ever do this role, whilst they are qualified ref's, they don't referee PL matches, their only job is to man VAR every single game, the same pool of people. It means that their interpretation of the infringement has the chance of being consistent because it's awarded by the same person(s) in the room.