This is exactly the issue, my wifes car was getting oil dilution changes at 2500 mile intervals most journeys for her are sub 10 miles so of course she was interrupting DPF regens!! they have since reprogrammed the dilution alert from 5% to 10% (on all cars) which doubles the distance... :

My point is that if you knew it was regenerating you would allow it to complete and not cause the Dilution issue,, a simple LED when a regen was on going has been implemented on many other manufacturers vehicles its not a JLR issue ...