Honestly, I wouldn’t worry about playing with 10bit dlog. I’ve done a zillion 10bit vs Normal profile comparisons on my M2Pro and I can say that 99% of people wouldn’t know the difference between them. I have a good friend who’s a commercial editor and he can’t tell the difference either.
The lens distortion is a pain in the rear, it is visible in anything with a straight edge in the footage so it does need to be corrected if you insist on using the 10bit profile.
DJI have stated categorically that the M2Pro will not correct it onboard and that users will have to correcting using post software.
It also seems unlikely that LF will suddenly add a lens correction module to their software (and why should they?)
So, users who want to use LumaFusion on their iPad will have to use the Normal profile or put up with the distortion that the 10bit profiles introduce.
Personally, I don’t care for the 10bit profiles on my M2Pro, I almost always output at 1080p and there’s no way anyone can tell any difference at this resolution!
Shooting the M2P outside of 10-bit mode and without using HQ mode, the image quality is almost identical to the Mavic Air and Mavic 2 Zoom with their tiny 1/2.3" sensors. The difference in quality with a properly graded 10-bit file is quite significant, but everyone has different thresholds for what is acceptable. It's odd that you don't like the 10-bit files, are you not grading them? They are objectively better and more malleable in post processing. If you just use them as is - yes they probably look very bland, but that is the point
The Phantom 4 Pro actually puts out significantly better video with the same sensor, but I believe heat issues prevented DJI from getting the most out of the sensor in the M2P on the video side of things. It's still very good though, and the still image quality is not compromised in the same way.