an argument, fact, corner case, or other issue raised (often intentionally) that distracts from a larger issue at hand or does not change a primary supposition, outcome, postulate, premise, conclusion, hypothesis, judgment or recommendation
Petty, trivial; of little consequence; small and of little importance; picayunish
It might seem like a picayune matter, akin to the rivalry in the film Monty Python's Life of Brian between the Judean People's Front, the Judean Popular People's Front and the People's Front of Judea..
(informal terms) small and of little importance; "a fiddling sum of money"; "a footling gesture"; "our worries are lilliputian compared with those of countries that are at war"; "a little (or small) matter"; "Mickey Mouse regulations"; "a dispute over niggling details"; "limited to petty enterprises"; "piffling efforts"; "giving a police officer a free meal may be against the law, but it seems to be a picayune infraction"
an argument, fact, corner case, or other issue raised (often intentionally) that distracts from a larger issue at hand or doesn't change a primary supposition, outcome, postulate, premise, conclusion, hypothesis, judgement or recommendation