The only way to deal with that level of incompetence is a massive demotion back to amatuer level ( semi pro ).
These officials have ran the line at hundreds of games to reach the pinnacle of the Premier League and the pinnacle of their careers.
I believe that some are bent 100% the only way to make them think twice is a massive demotion that would take them years to recover from and so not worth the risk.
Why hasn't that linesman been interviews by the TV ( BT ) in this case. If he was put before the paying millions and asked " how did you not give offside there ?" Not only would he feel a right twat, but he could offer no excuse but I got it wrong. It wouldn't take long if the same ( cheats or useless twats ) would be being interviewed every week and the shit or cheats would be quickly exposed and removed , also other cheating twats would think twice once this kicked in.
Why is it that players and managers are interviewed and put under immediate pressure post match but these ducks aren't and can scurry away like the cockroaches they are.
Put the fuckers right in the spotlight every week.