From my perspective Sylhet Strikers did well but their foreign players did not contribute much to the team. Among the few foreign players, Thisara Perera was decent but her performance was not good in comparison. Sylhet Strikers got this far only with the contribution of domestic players. Mushfiqur Rahim in particular contributed significantly in almost every match. Looking at the squads of the two teams, it was easy to guess which team was stronger. Sylhet Strikers 175 were not low score but for the poor fielding with having catch miss incident implies the defeat of Sylhet Strikers . But all things considered, the ending was well.
I agree with you. The contribution of foreign players in the Sylhet Sixers team was very less. Among Ryan Burl, Perera, George Linde, and Luke Wood, only Perera's performance was somewhat decent. Also, the rest of the foreign players did not perform well. However, Linde bowled well in the final match. He gave only 14 runs in 4 overs. But he could not bat well.
Mushfiqur and Shanto's performances were remarkable in almost every match of Sylhet. At the same time, I will appreciate Mashrafe's captaincy. He is a really good captain.
Comilla's team was very strong. Liton Das was in good form throughout the series. Comilla fielded three world-renowned all-rounders like Narine, Moeen Ali, and Russel. Besides Johnson Charles' unbeaten innings of 79 runs in the final, the Comilla team became champions.