Heh, it's funny how experience shapes our games.
Way back when, when I played 1e and 2e, I would often play humans because I would be the only one in the group. If we had six or seven PC's, it was pretty much guaranteed that 5 of them would not be human. Elves, dwarves and that oddball and then me as a human. So, to me, AD&D was never humanocentric. No one I played with played humans.
Fast forward to our 5e group. Lessee, Dragonlance, 6 PCs - gnome, elf, minotaur, 3 humans. Now, my Primeval Thule game was mostly humans because I really wanted to showcase the setting before adding in other stuff. But, that was definitely the exception. Our Waterdeep/Undermountain campaign features a sentient skeleton, a war forged, an aasimar and 2 humans. Our Greyhawk Ghosts of Saltmarsh group (only 4 PC's now) has a Firbolg, an orc, a gnome and a human.
So, I find it rather strange when people talk about D&D being humanocentric. It just never has been for me. Forty years of gaming, across several countries (and even a couple of continents), literally hundreds of different players, six editions if you count basic/expert, and D&D has never been humanocentric. I've never played in a group where humans were the majority of PC's.