>>2179924it means they know their target audience is fujoshi, and fujoshi want boys they can pair up and draw lewd doujinshi about, so they put in tons of pseudo-romantic and pseudo-sexual tension to the point where you would have to be blind to not see how gay they are, except none of them are canon gay. they're all Just Bros because if it were BL, they wouldn't make as much money on merchandising.
TL;DR: Japan is homophobic enough to not have actual gay characters, but not too homophobic to make money off of BL fans.