In my opinion, the biggest issue with high level play (Arena 10+) is players taking advantage of weak defensive AI with attackers with height (hammers and commanders) to get easy scores.
I am specifically speaking about in the flow of the game, not the corner kicks, where it is slightly better.
In theory this kind of slow, plodding atrqcj should be easy to defend. Plant a Commander or two on the back line and they should have the height and reaction speed to reduce or eliminate goal scoring chances.
However, that is not the case, frequently my Commanders (best height and reaction time) in the game will not even make a move on a ball in the air even though they have superior position.
I’m left watching goal after goal sail in the net as my defenders stand and do nothing at all. Frustrating.