How does it look? Are you happy with it?
I will let you in on a secret...... EVERY paint job will have a flaw in it if you spend an excessive amount of time looking.
Wet sanding and buffing of the clear if far from mandatory. In fact, if the paint went on well and looks great, you shouldn't wet sand and buff.
In short...... If it looks great, don't mess with it.
And if I understand your question (not sure I do). Unless you have sanded on it yourself and left the painter with an unknown film thickness that he isn't willing to risk burning through, he can still wet sand and buff.
But this should have been done before the parts were put back on the bike, in my opinion.
