>>41344687There's a lot more complications with trying to have attack animations work between regular and Max mons than simply having them hit the target right. Tons of moves involve adjusting the enemy animations/position/rotation/scale on top of how it does to the attacking mon. And there's a lot of moves with unique camera angles/effects that would be fucked up with it (i.e. Smack Down literally moves the enemy up and puts the camera below them before slamming them down).
To make sure things don't outright break they'd have to make two versions of every move in the game pretty much for vs regular and vs dynamax.
On top of that, some moves have fairly long animations, which would be annoying to sit through in a Raid battle when there's a good 4-5 moves before you get to see your mon do anything each round, meaning they'd need yet another version for all the moves to pare them down.
So instead of all that bullshit, they simply made all regular moves vs max mons have the Pokemon play their special animation and do a small hitspark corresponding to the attack type on the max mon. The legendary signature moves being the exceptions to this cause they're specifically meant to be used on Max mon and were given an animation that works in both regards.
Like, not to make excuses for GF, but this is a rather big problem. It's one they made themselves by making the gimmick be giant pokemon, but it is one that takes more thought than just "durr, point the attack at the big mon!"