He’ll always be remembered for his unique take on the Beatles.
https://faroutmagazine.co.uk/quincy-jones-the-beatles-worst-musicians-in-the-world/
Peggy Lipton might have something to do with it.
I would argue that was their strength. Would they have been as innovative as they were had they been the products of some music conservatory. It was not how they played that was important, it was the music! It is possible Quincy Jones was taken out of context that happens a lot. More likely he was being an ass. I read a few interviews and he comes across as arrogant and highly opinionated. When dealing with press, he seemed to lack a filter. Didn't know the man but some of his comments suggests there was always a racial component to his views on certain performers.
Jones was responsible for a lot of great music, but producers are looking for a specific sound, Ringo is not the first nor the last famous musician to piss off a producer.
Two of the greatest drummers of that era according to their contemporaries were Karen Carpenter and Ringo Starr.