I think comparatively Gujarat Titans players were strong enough but luck was not with them. As a result they lost the final match.
Luck wasn't with them? Did you even watch the match? They were extremely lucky throughout the match until the last two balls since CSK fielding was very, very sloppy. Freaking Gill was dropped when he was on single digits.
Both GT and CSK played extremely well and CSK ended up on the right side of the result. Simple!