I’m a big fan.
I’m coming from the long distance accuracy world, and it just makes sense.
When a trigger is curved, where you place your finger becomes a fulcrum point, and can drastically effect where the end of the barrel points, and exponentially effect where the bullet hits.
A flat trigger however, does not do this as the fulcrum point remains the same along the entire length of the triggers surface.
One less thing to worry about.
This is coming from a world where 1/8-1/4 of an inch is HUGE....
Also, think about it, if you are in a Tactical situation, your BP is up, your adrenaline is up, your accuracy is DOWN, this is a human fact of life, so something small that makes a big difference might end up saving your life.