azir bugs?

I don't play him lots but I've played him before and played him just now on aram,

two things that didn't make sense to me

1. as far as I understand it, all my soldiers can attack if there's an enemy there. I had a soldier close to a zac which I'm pretty sure coulda attacked and last hit him to kill, but when I used the attack move click near zac instead azir attacked a minion next to me that was very far away from my cursor...

2. I ulted and it went right over a pooled vampire. I know that his pool can't pass through turrain, so I mean I understand that his pool gives him invulnerable but if there's terrain moving over him it makes sense it'd still push him. I guess it makes sense to me that it'd push him but not bounce him...