Did you guys notice that the ghosts in our smash attacks somewhat follow the AI they had in the original Pac-Man? If you're looking at these situations, assuming Pac-Man and the opponent are facing each other:
Opponent____Pac-Man__
or
Opponent
______________Pac-Man___
...the ghosts follow their A.I.
Blinky: in the original game, he targets you all of the time. If Pac-Man is facing his opponent, it makes sense that Blinky would handle Fsmash because he's constantly trying to get them.
Pinky: She would target a few spaces ahead of you, and with our Dsmash, she's most likely to catch an attempt to roll behind Pac-Man...which is a little distance in front of the opponent.
Inky : his is weird. His target depended on a few spaces in front of you, and how far Blinky was from you. The vector from Blinky to the few spaces in front of you, doubled, would be Inky's target. In smash, this makes sense in the air scenario. If Blinky is handling Fsmash, Inky would go up because the vector from Blinky to the opponent points upwards.
Clyde: his target system was the same as Blinky's, except he would retreat whenever he actually got close to you. In smash, this is reflected with Dsmash. He goes straight at them just like Blinky, but doesn't actually want to reach them, hence the shorter range.
So yeah, they really paid attention to Pac-Man's moves too.