i heard that older potato's timeline (the ones w/ a "bl undertone") is just to please some fans and isnt in the main storyline where its a platonic father/mother(?) son relationship. imagine everything as a story that (unlike the baby potato universe) doesnt build up to any major scenario (e.g., discovering potato's heritage) and is similar to a slice of life type of timeline, and random bl moments are just added for fun and spice (you may notice that the author doesnt go too sexual that its creepy cause, again, the origin of the story is platonic) but it isnt rooted into the plot. that genderbend photo is another example of this. fan service.