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> Vinyl isn't about crackle or warmth.

It kind of is because you don't have an even frequency response throughout the vinyl. The closer to the center, the less high frequency response you get. Also higher frequencies in general require the cutting needle to to move faster and can introduce unpleasant distortion into the record, so you might attenuate higher frequencies on a vinyl record that you wouldn't need to for the streaming/radio/cd mix.

> It's about the fact that vinyl physically cannot support a super compressed mix.

This is false. Vinyl's physicality limits its dynamic range. If you have too high of an amplitude the cuts in the vinyl will be deeper and depending on the track could lead to the needle literally jumping off the player creating skipping. A super compressed mix doesn't create issues, a heavily limited one does. Clipping and brickwall limiting create problems for vinyls and introduce unpleasant distortion. You can still have a very compressed track on vinyl.

If a vinyl mix ends up with more dynamic range than the CD mix, it's because it was an active choice made by the mixing/mastering engineers, not because vinyl can't handle compressed mixes. In fact due to avoiding limiting as much as possible, you'll encounter plenty of cases where there is less dynamic range due to added compression to bring out the detail in quieter sections.