Stopwatch vs Flashy plays

I just watched the Giants vs G2 game on youtube as i had no time to see it live.There,at the moment when Skarner used ulti on Tahm and pressed at Thresh's Lantern to cross over the wall,Tahm denied them the kill by activating his stop watch.

In my opinion Stopwatch gives no extra fun on Lcs or in the game overall.Gnar stopped them,but Tahm could simply die too.Why trying with your team a 100% coordinated attack to kill that poor guy who dared to position himself poorly when he simply can activate his Stopwatch and deny you the kill.

Dunno but i just do not like it.More Stopwatch actives on the game means,less fun and rewards for good plays.

What do you guys think?