Ball to hand is not handball, handball has to be intentional. All the rest around it is just guidance to tell refs what is intentional... Though they should use their own judgement as well. Grealish is moving his hand down by his side after using it for leverage to jump, which isn't in the guidance for what constitutes "intentional handball". If it was the other way around, with his arm going out to the ball, you could argue it more. I wouldn't want to see that given against us, that's for sure... I don't think we can complain too much about Oliver yesterday, Caicedo could have got a second yellow. There were 8+ minutes of stoppage time somehow as well.
The issue being highlighted, is how badly IFAB, UEFA etc have distorted how everyone looks at handball and how badly, how badly they've fecked the sport up with too many law and guidance changes along with how inconsistently football is officiated.
With disgusting decisions, like the one against Newcastle in the CL this season, the one Utd one v Bournemouth being given, people have got the idea that the ball hitting your hand by your side is handball, when it almost never should be.
We missed our chances and bottled the match pretty much, blaming the ref is just distracting from our deeper problems.