They feel better in my hand. Most modern pistols have a similar shape to them.
I like the way they look as well.
I prefer arched mainsprings as well and find that flat mainspring housings dig into the edge of my hand and don't let the grip sit nicely in the palm. The bobbed grip gives you a flat mainspring closer to the trigger grip but removes the useless material at the bottom that digs into the edge of my hand.
Win fit
Win looks
And another win if you were carrying concealed .....
