One thing I've found with this group/forum is most dont do their own repairs, has in other groups where the majority do their own repairs...
I am all for diy repairs and have rebuilt one drone completely and repaired another but if the crashed drone is under warranty or covered by care refresh then diy repairs may be invalidated those 'covers'.
In addition
1) some diy repair are based on guessing what the damaged part is, buying a replacement part and hoping that that part was the problem, if it isn't and further guesses and purchases are required then the costs can quickly mount.
2) DJI have started pairing some components to one another, especially the gimbal/camera assembly with something else inside the drone. This can complicate matters considerably or perhaps make a diy repair impossible.
3) DJI do not make many parts available to the public, props are the only one I know of, consequently most parts are either pattern parts or parts salvaged from other drones
4) to be blunt some diy repair jobs are wreck less, to the point of stupidity, and possibly render the drone in airworthy.
5) amateurs may miss damage, I did, it took several strip downs to find all the damage in the
mavic 2 I crashed.