I think there's a better way to have that combat inexperience represented rather than just having a useless AI. His AI is only good for standing around and being killed lol.
The clumsily executed way in which Prompto does his attacks is a good representation of that. His stagnant EXP growth when compared to the rest of the cast is also a great representation.
But yeah, hopefully there's some change in this aspect. I don't want gameplay to suffer heavily due to plot devices, JRPGs have been going downhill in the last couple years because everything is being influenced by plot alone nowadays

Also no problem!