Careless People is a story about Facebook from inside Facebook, so of course it adopts the viewpoint that Facebook's moderation decisions are very important, but ultimately they were a sideshow to what was playing out on the ground. This goes double for military attacks on Rohingya villages, which can hardly be explained as spontaneous reactions to some Facebook post.
In any case, Facebook moderators literate in Burmese would've known to use the right font, whereas for Facebook moderators trying to deal with a language they can't even read, the font choice would be the least of their problems.