Hard to say, you seem to consider it's "all or nothing" based on support only, which is as biased as the few "never again! " frustration-based posts we sometimes see on here.
In reality the decision to make a purchase is a big compromise between several factors like price, performance, quality, durability, support, efficiency, flexibility, availability, ease of use and I most likely forget some. Everybody has different weighing of these factors and that's what you'd want to know to get to any meaningful metric.
After a big frustrating event people let it all out and get crazy, but when they've calmed down and go back to rationally deciding what to do they'll look at the whole panel of factors again. They might find that even if support was bad they're still ok with that knowing the other factors are more important.
Just like when offered good products at a certain price and less good products for cheaper some will choose the more expensive one, and some the cheaper one.
Support levels going down everywhere is partly due to that. People tend to more and more favor a lower price to good support, so naturally companies cut down on support expenses to offer lower prices.
I would have to answer "I feel that I have not been treated fairly in one or more respects" because there have been snags on a couple of occasions over the 6+ years I've used DJI products so I can't really say "I have been treated fairly by them in all respects", but then that is relative, and occasional snags will happen with every company. I've used a supplier for parts becasue they always have constant stock and I needed short term availability - yet one day they still ended up having no stock because of a somewhat unexpected combination of events someone orderded way more parts then they ever usually sell, right when their supplier was closed for a week - well, that's life, can happen, and can't fault them. And it's also relative because as explained even if there have/had been snags that were hard to forgive, the other aspects of their products still heavily keeps the balance on the positive side given my weighting of the diffeent factors.
To piggyback on the other thread where you seem outraged at me looking mostly at the bottom line to measure success of a business, the reason I do so is that in the end it encompasses everything. If customers were feeling mistreated they wouldn't buy, which would reflect on the bottom line. If the bottom line is good it means that the company's overall performance is good enough to get people to do business with it. Given DJI's position it's pretty clear that while support isn't perfect the overall company performance satisfies people's factors in a way that makes them sufficiently happy.