Well, it's not as bad as I've seen 1911 guys do with expensive brand new pistols...that can be amazing sometimes. Same with ARs...out of the box is never, ever good enough. Come to think of it, aren't there a ton of modifications for Glocks out there, too?
This is the 1st Gen P-10C, and just like almost everything, there will very likely be some very intelligent and influential people listening to the feedback to make improvements as needed, unless the truly custom work brings the price point to where it's no longer where they want it. Balances.