Yeah, the first one does look like a foul. The second is bog standard grappling, the third is nothing. The freeze frame makes it look like he is trying to kick yer man, but the video shows it's FA.
The difference to the Timber one, is Timber's foul leads directly to the goal. He nudges Paqueta, meaning Paqueta misses his header and Arsenal score.
It's not a "oh my god how did they not see/give that" it's probably more 'clever' play. But for me, it's a foul that leads directly to a goal, and should have been disallowed. Arsenal are very good at pushing the limits from set pieces (that's not necessarily an insult) I just think that one should have been chalked off. And I don't like Ben white standing on top of the keeper either, but that one seems to have died out, thankfully.
Amazingly Pool get a cushy home draw in the FAC, as do City (obviously), Chelsea, and Newcastle. Spuds draw is interesting. If that was at WHL, they could play their under 11's and the big stadium/atmosphere would win it for them, but going to a non league ground makes it a banana skin game.
Arsenal Utd is clearly the tie of the round.