When I first got Sims 4, I was disappointed by the cartoony look. Things had been getting more realistic and more detailed, and then BAM! Long, cartoony people.
Then I went back and played Sims 3 again. The graphics didn't hold up well after time. What had once looked more realistic instead looked old. Meanwhile, the cartoony Sims 4 sims still look the same.
I really would like realistic-looking Sims, but I understand why they went cartoony, and it seems to have worked. I vote "Why not both?"