Multiple things wrong today:
1) The penalty not given to Watford. Same story all season, next to impossible to overturn subjective calls in the PL. In a league with a functioning VAR system the ref could have a look at it again himself but that doesn't happen in the PL.
2) The confusion with the graphics at the Spurs game. Not only is that an amateurish mistake, it makes it look to the crowd as if the referee has actually overruled VAR.
3) The Burnley goal disallowed. Too much depends on what the referee tells VAR he saw in this scenario. I suspect he said he didn't see any contact with Evans, in which case when VAR does see contact then they overturn the goal because the ref has made a clear error. Yet had the referee said he saw contact but just didn't think it was a foul or didn't think Evans had any chance of getting to the ball, then I don't think it gets overturned. Again this is down to the protocol used in the PL, which places far too much weight on the ref's initial call while also giving the referee no chance to re-assess incidents himself.
4) On a broader level, the lack of explanations. We shouldn't have to guess or deduce why Watford weren't given a penalty or why Burnley didn't get the goal. Clear explanations should be provided, especially when so much depends on what the referee initially saw. If we don't know what he tells VAR, how the hell are we supposed to know what they agree/disagree with?
5) On a broader level again, the net effect of (almost as a policy) punishing offsides without awarding penalties: fewer goals. Again, this disparity is down to the PL's system. There have been far, far, far too few penalties given this season because VAR is neutered in overturning subjective calls. Which means it has benefited defenders far too much, as opposed to attackers who are (correctly) being called for offsides.
Nearly all of the above could be solved or vastly ameliorated by a) using VAR the way other leagues do and b) explaining the logic behind decisions correctly. But I have no faith in that happening quickly in the PL as it would require them to be open to admitting their mistakes both on-pitch and in terms of policy. Plus it would also require a degree of competence that is at odds with them introducing the worst VAR system in Europe despite having had the benefit of seeing what all other major leagues have done.
Bah.