Wonderful!
I think there's a few interesting points here.
Firstly, I disagree when you say the OG isn't more gorgeous than the 4K.
There's a view that because they all shoot RAW that they're the same because you can make RAW look like anything, but that's simply not true. For example, even in colourist circles the ability for Steve Yedlin to emulate film is often viewed as practically impossible, and Steve even says in his blog that it's not possible with the limited tools available (referring to Resolve and Baselight) and he had to write his own custom software to do it.
But setting aside professional colourists for a second and getting to the people who would realistically buy a BM pocket cinema camera (P2K, P4K, P6K, or P6KP), these people aren't likely to be able to grade the P4K to look like the P2K, or vice versa (and let's be honest - a great proportion of them only go as far as applying a LUT). So while in theory the P2K isn't more gorgeous than the P4K, it is in practice when the average user has next to no ability to colour grade.
Moving into the comments about resolution and sharpness, I think this is something that relates to marketing and to ability to colour grade as well.
It relates to marketing in a couple of ways.
Firstly, people often pick up the P2K for a retro look, because they're been brainwashed by TV companies to think that more resolution is more modern, when in reality most cinemas still project in 2K. In addition to this they often pair the P2K with vintage lenses, which of course give a vintage look, which lacks sharpness. However, in fact the P2K and BMMCC can just as easily be paired with modern cinema glass, and is by people who aren't after a vintage look.
Secondly, as people watch more and more content from YouTube rather than content shot on Alexas and graded by professional colourists, people get used to a sharper look as the default look. Once again, this is marketing because the default look is over sharpened because the TV manufacturer who made your camera is baking that look into the camera in order to manipulate you into wanting a HD FHD 4K 8K TV.
Sharpness also comes down to colour grading, and this is something that I am experimenting with at the moment. The P2K and BMMCC are very soft straight out of camera, which is fine if you know what you're doing, but alas, these files aren't being graded by professional colourists, they're being graded by people who don't even understand how LUTs work. On top of this, sharpening is a whole art form but is almost never discussed and there are basically no tutorials. Why? Because your TV manufacturer camera oversharpens rather than under sharpens, and instead of learning to sharpen in post you learned to use vintage lenses and diffusion filters to get a sensible level of sharpness.