Do you think chess.com should change 15 second rule !?

Im talking about live chess, when two players are connected to play , you are given 15-20 seconds something like that to make your first move.

I mean it's so unfair, because once you moved you showing them your first move, which opening you are going to do etc.. and then they decide not play you , they not familiar with this opening so they just abort the game , it shouldn't be like that.

Like in OTB if you move and press the clock, their time starts running they can think as much as they want or resign, they can't just get up and say or sorry I didn't learn that opening I will play with someone else.

In some cases some people after playong a game with them using a black peaces, rematch just to see what opening I will use and once I move they abort!

What is your thoughts on it?

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