Yeah I agree, when it comes to Shoji vs Spinner that's a matchup that makes sense and it's fight that people have theorized before.
However it's really disappointing that there was no buildup to that fight, that's a fight that should have had proper setup.
This is sadly true for most of the fights, especially those with fairly unestablished characters like Shoji, Midnight's Killer and Mina.
Uraraka vs Toga, Deku vs Shiggy, and Dabi vs Shoto were the main fights the series spent setting up, and all of them had already well established characters.
Endeavour vs AFO was a surprise, but both characters are so well established they can get by easily.
Mina and Midnight's Killer, Aoyama and this Kunida guy, Shoji vs Spinner are either unevenly set up, with one character recieving more focus than the other, or with both parties not being set up at all.