Looks like you're at least playing a tier 4 alliance and you're stuck on their map. But being able to use Kushala is odd. That first picture you showed of bans is your bans for them and the second picture of bans is theirs for you. Could be that challenger rules apply to them and expert rules apply to you somehow. Did they use any of the champs you banned?
Kushala is only a global ban on the challenger map. Expert and elite maps have Thanos and Sinister. You banned her for the other side but you can still use her.
They still ended up using onslaught, which we have clearly banned... now idk how to plan the next war... do I plan based on tier 2 or 3?
Onslaught is on the white list/ ban immune this season so if he’s on your ban list it just gets ignored.