Here they are!
Yes, I know/knew the hand ball rule prior to that tonight, because it was so well publicised ahead of the season that I read up on them.
Tonight was so obviously a penalty that I knew it was on first replay and I was just annoyed they were delaying giving it because I wanted us to hurry up and obviously miss the penalty so we could get on with going for an equaliser.
I didn't expect it for a moment not to be given.
As for contact, the rules give guidance on that - they are subjective. Some of the guidance is more concrete than others, but generally they are up for interpretation by an official on match day, which is unavoidable. It's why I'm not raging about Richarlison's one, because although I think that was a definite penalty, I can at least square that circle by saying the referee saw it from a different angle/on the run etc. and that it wasn't 'clear and obvious'.
The handball though? Nope. No justification for why that wasn't given, absolutely none.