Ah I see you're a gun expert I'm just a pleb...

You're griping about something you have zero intention of buying because it isn't how you would do it.

9mm doesn't needs comps and tungsten guide rods unless you're seriously weak, or in the upper ranks of competition shooters and need a very slight edge. They have very minimal recoil. Lighter slides run faster and less weight moving means less of what little muzzle flip there is. So yes removing weight is motivation and it doesn't take much weight on something moving like a pistol slide to make a difference. Not to mention there's more texture when it's cut for working the slide with sweaty/bloody hands.

Top serrations aren't needed the rear site works way better to work the slide off of something(boot/pocket/holster) one handed, most people only do it for looks and couldn't run a pistol one handed anyway.

Yeah that definitely looks like crap, the glock looks a couple hundred times better than yours, you're just proving even more you have no room to be griping.