If you're one of the 15% or so of the population that they fit well, then it's no big deal.New GLOCK Models Set For Summer 2017 - G19C And More - The Firearm Blog
Found this. It's kinda old though.
Why does everyone seem to hate the finger grooves so much? Mine is relatively comfortable.
My gripe with Glocks wasn't so much the finger grooves. It's that Compacts (19/23/32) hit my hand bones in such a way that all the grip pressure on the back strap is in two spots. I need a LOT more curve in their back strap to feel controllable. It was this, and not the modularity or trigger or anything really that made me choose P320 over G19.