From the article:

  The Perseverance rover is currently too far away to attempt to image the helicopter at its final airfield.

I wonder if the rover couldn't proceed to the location of the helicopter and get some high res images for diagnostic purposes. I'm sure they considered that option so maybe the rover's schedule is just too busy to accommodate such a mission.

Anyway, R.I.P. Ingenuity and kudos to Nasa for another excellent piece of tech that lasted on another planet for years longer than originally planned.