Bkdks never needed a canon romance confirmed or a kiss, we never needed any of that, we just wanted the last interaction between them to be THIS,
Optimistic, working together, tearing it up in the ranks, smiling, flying through the city in their hero costume(and armor suit) HAPPY AF
431s interaction between them was half consumed by this awkwardness and rejection hanging over their head and No, izuku doesn't need to join Bakugous agency for them to work together meaningfully, that's not the point....
The point was always the framing of that whole interaction, and it feeling like a rejection(and kirishima teasing bakugou that it was such) and those lines at the end as Katsuki waves goodbye (as if izuku is moving on without him) that "no one is actually special".... and that it was, for a while, the LAST thread we got of them!
I've said it before and I will say it whenever it comes up, the bakudeku thread kn 431 was strange, and was like setting up a new (emotional) conflict up, with no resolution, which is just unsatisfying writing.
(Again, yes they will be friends and work together regardless of being in an agency or partnership, BUT it is the FRAMING and the overall context and placement of this conflict that didn't work....and I think it left a bad taste in all our mouths.)
But just the one panel from horikoshi was enough to lift a weight off me, just bc of how satisfying it is to actually see them happy, and working together, even climbing the ranks on each other's heels.
Is a satisfying ending and answer to "the rest of our lives."