This MOD is already been Updated by me. With a much better working Code.

Your mod contains a lot more things than automatic coupling. Chances are that many people aren't interested in those things, and don't like cluttering their game with additional stuff just to get some extra functionality.
Please do explain why your code is better though, I'm very interested in that. What is fundamentally different from this mod to yours?

Well by your Code the Trains leave after Coupling, my are waiting for the Train to leave than Couple.

Is that the only difference? Do you know if your coupling works with the Smarter Trains mod?

My Coupling works with my Smarter Trains.

My Coupling works with my Smarter Trains.

I may need to be a bit clearer: With 'works with', I mean does the line assignment stay assigned when coupling / decoupling? My quick testing shows that the line assignment gets removed, resulting in the loss of functionality for line rules. Is there any way to re-assign this line after decoupling?

My Line Assignment Stays. Because I use a very Simple Smarter Trains.

What do you mean by 'very simple smarter trains'? I can't find any mod by that name

Its my own MOD. Its in my Trains MOD with Coupling together.

The Uncoupling still dont work in Senpais "mod"

Looks like Luzifer's mod adds a ton of useless bloat too.