Whether the stories take place in pre or post Civil War, they’re still problematic.
Okay. But the fact remains the Uncle Remus stories were written and are set after the Civil War. He was not a slave, and that's important, as I'm sure you'd agree.
I could ask "problematic to whom", because most literature written in the 19th century would be "problematic" to much of 21st century audiences; women, gays, Asians, the disabled, etc., etc.
But once that 19th century literature has been distilled into a late 20th century log ride using robot singing chickens, is it really still problematic? I don't think it is. That said, I'm still looking forward to the Princess Tiana's Bayou Bash N' Splash, Presented by ZIploc version of this ride.
I never saw the Tiana movie, but I sure loved that musical show they did on the Mark Twain with this movie that one summer! It was fabulous.