No but seriously, if you already backed up your switch on 5.0.2 you can restore it or "downgrade" it easily since they have the same number of fuses, so it REALLY doesn't matter if you update. Other than the new eshop look I don't think there was much reason to release a new firmware unless they added something in preparation for Team Exeggutor/Hemisphere or maybe just the mariko version being released before smash pushes the last of the exploitable inventory.