Responses
I guess because in this case, we can feel that the authors aren't trying to let the female readers self insert in the bottom. AJ jas his own agency.
Besides the authors are a wlw couple, so i guess that leaves little interest to push for hereronormativity onto their story, specially when they are queer themselves.
Generally I hate when authors draw the bottoms absolutely tiny cause I feel like they do it to make it easier for themselves and female readers to project themselves into the character or it is just plain heteronornativity(not every BL but there are some where you can just tell), but this is some of the BLs where I don't feel like that's the case and I find their size difference just so hot.