There is only one benefit that I see with Glock going outside their comfort zone, and Glock buyers bothering with what every one else did years ago.
That is that it allows you to have your full range of pistols using the same firing system, therefore having similar trigger pull and breaking point. It would allow you a little greater accuracy with out having to stop and think, OK, this one has the safety to remember, the other has the heavy trigger etc. There will still be variations but less drastic From "pocket pistol" up through 10MM hunting handgun.