You could argue all you want about it being a common pluralization. But the fact is that it doesn’t matter, language users have no responsibility to use logic or make sense. You say something, if people understood it, then that’s the way it is. Everything else is prescriptivism’s anal fixations. The fucked up discrepancy between written and spoken French is their fault. The madness of English spelling is their fault. Bunch of stuck up academics who had the power to force others in the education system to follow their logic. Now a bunch of shit doesn’t make sense. Because common people will talk however the fuck they want as long as they make themselves clear and you can’t do anything about it.