Factory is standardised and homogonised. this is custom work, it should be better. the only reason paint comes out poor is because of shitty prep and or painting/polishing skills.
Paul seems to be suffering with all of the above

it also very much depends on how much you pay to be fair but still.....
for sure a factory finish is great for not actually being finished (polished up etc) and it is helped by electrostatic application but in no way should a fairly skilled painter knock out work that looks worse.