I want to switch ship as well (heavy Tsukimori x Hino in original) but i just can't... everyone understands their position and even help the (dumbass) highest possibility guy aka Tsukimori to go get her.
Hino looks so head over heels over Tsukimori, just make them canon already. Tsuchiura.... even in original he still has this inferiority feelings to Tsukimori and in the end he's always the one who supports them the most, Tsuchiura said multiple times that he's totally okay if the guy for Hino is Tsukimori but not someone else. I think fully move on is really a mature choice as he deserves a better girl.