That makes sense, I suppose. But what players can play back video at that frame rate? I imagine there must be some, but how many and how commonly are they deployed? As stated above, usually 120 fps or 60 fps is usually shot that way to take advantage of the improved slow motion when played at "normal" frame rates.
I am not saying that Adobe should not make it possible for one camera, or even a few cameras, to be able to record twice or four times the frame rate of the rest of them, and still play it back at the native frame rate.
I am saying that Adobe has finite resources and the actual need to edit it that way is limited by the fact that nobody could actually play it back that way. You could always put in a feature request. Eventually, if enough people do so, the engineering resources could possibly be applied to the problem.
But again, if film is 24 frames per second, most video recorders use 24, 25 or 30 frames per second and even my camera can record 59.94 frames per second, the human eye isn't really going to be able to take advantage of something with a frame rate twice as high is it?
https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform