I've always thought that, at least in regards to sentient free-willed mortal beings, inherent evil was a mistake, and this belief goes back many years beyond 5e. (Anthropomorphic personifications is an entirely different kettle of fish, and they shouldn't really be compared)
But I don't understand people's aversion to the new "cultural" evil angle, even though it's really not a new angle at all, and WOTC have been heading towards this for many years, because evil is and always has been a cultural and social concept that can and has changed depending on the beliefs and practices of people. We humans made it up, it's fake. Things like inherent good, evil, law, and chaos are for deities, celestials, and fiends, not pointy ear Elfy bois. This isn't Tolkien, people are allowed to have complex moral systems within their established societies.
Now, I have strong opinions regarding the recent errata changes, but my biggest concerns are not about the changes made to Drow at all.