I'd be interested to know about two practical aspects.
2. Why no lens cap given extra size compared to smaller Gx series? I wouldn't want to use this camera for travel without an optional lens cap.
There is no need for a lens cap - when the camera is off, the lens automatically retreats back and the glass is covered with a shutter. In other words, when the camera is off, the glass lens is not exposed - it is capped automatically.
Like other cameras with this system, it's nowhere near as effective as a lens cap.
I have had more than 10 cameras with that kind of automatic lens protection and never had a problem with any of them. I think I will take a chance with one more.
I can understand on cheaper (and smaller) point and shoots but not so much on this - which is an up market compact camera.
It's probably not a hill to die on but, again, when trying to think about this camera from a practical perspective, its main strength is portability and versatility. It's not a studio camera. You're going to be using in different environments, pulling it in and out of pockets. That's how dirt/dust gets in the lens, the curtains catch and so on. Accidentally turning the camera on when in a pocket extends the lens, opens the curtains, and potentially scratches the lens.
Ofc you didn't say this but I'm amazed anyone could call it "dumb" to at least query this decision. My preference would be for a lens cap on this sort of camera, like the G1Xiii. An acceptable workaround would be a third party attachment so, as I say, it's not a major issue.