While Galio mid is fine in Korea and maybe even for other regions, teams, players etc; I have to agree honestly.
Bjergsen just isn't that type of player that has a reputation(he's mid to begin with) of starting fights, being the frontline player and really engaging in his career.
We've seen Bjergsen gank top half the time super late, in which results in nothing and it's just not a smart move for TSM to do so.
Said this before and I'll say it again, TSM BUILD the team comp AROUND Bjegsen; have Bjergsen play these AP-AD assassins, mages etc and let him carry off it. The first split he came into NA he played nothing but assassins/mages and had like a 7 kill 1 death 5-6 assist split and TSM was like 22-6 because of it.
Hauntzer playing these carry laners. Wasn't TSM horrible whenever Hauntzer played carry champions? It wasn't until he played nothing but Maokai that TSM actually started to win games and hence them actually getting to the Finals in Spring 2016? Didn't he play nothing but carry tops at Worlds and well we saw what that resulted into.
Play tank top Hauntzer Shen, Mao, Tank Ekko, Swain
Overall give credit where credit is due, IMT outplayed TSM HARD!