But I completely get where people are getting BL signals from here. Bunch of guy wolfs with a certain lack of girls in sight, with some prominent jealousy issues around affection, oodles of intimate physical affection (which is totally fine within families, to be clear, but), things like that tea-licking scene in ch. 19.5 right as we're being introduced to them as humans, the tropes that their visual designs and personalities seem to come from and where those usually show up... No one thing that is by itself damning, but the sum of the parts is too deeply familiar-looking, it's hard to believe it's a coincidence. Which, again, despite that, doesn't necessarily mean anything untowards.
But, yeah, nonetheless, I'm not worried that the fans are shipping them—fans will do that, for good or ill—I'm too busy worrying whether the author is XD