Zero chance. Zero. The ban's also for save editing, certain things that trigger a ban, like extensive bag editing (999ing everything), unreleased items, hacked illegal shinies, and definitely gender changing and OT/TID/SID editing. Also, region emulating, game syncing from a region changed NAND or with Luma's region emulation that is different from your game save's region info. I assume when you say that you don't game sync, it means you never ever signed up through Global Link and got that all set up. Therefore you are 100% safe.