Am I missing something here? What concerns/puzzles me about this thread is that the OP doesn't appear to have made any effort to find the lost drone. Most fly-away threads appeal for help in locating the AWOL craft with many having a happy ending. This just seems to be a rant against DJI and how terrible they are for not replacing a 'two-year-out-of-warranty' bird.
Yes, I understand the irritation of a s/w update ballsing up a perfectly working piece of tech; Apple and MS do it all the time, but rather than throwing my toys out the pram I try to find a work-around.
After reading so many horror stories on here about problem DJI updates, I have resisted updating anything on my 2+ yo P3A and no regrets so far. If the day should come that I have to update it I will be keeping it a lot closer to home than the OP's 200'/700' until I am sure everything is tickety boo.