First off, excellent take. Authorial intent is relevant and interesting to discuss, as with the internet, it's easier for creators to interact with their audience.
Secondly this was so comforting! I feel like I now have permission to unapologetically revel in my comfort media, created by fans or otherwise.
Something about kirishima and bakugou being in love makes me so emotional. Even though it's just a ship, the fan works I see for it feel so authentic to me. I can imagine the relationship actually functioning and it makes me get sappy about the experiences I feel I missed out on being in the closet.
In conclusion, am I a repressed gay projecting onto fictional characters? Yes. Does that make them or the artists/writers any less precious to me? No.