Hadn't heard of this- really want to check it out. Kinda sucks that they're starting in modern times, HBO would be the perfect medium for an anthology style adaptation of Harry Turtledove's Timeline 191.
The backlash was stupid. I like the creativity in trying to bring an alt history to mainstream entertainment. Has the potential to be seriously thought provoking tv, and avoid the same tired remakes.
I love how they just jumped to the wish fulfillment/ glorifying slavery angle. I'd bet the portrayal goes one of two ways- dystopian condemnation or not so subtle parallels combining modern systemics racism/ social assistance programs/ prejudices into an institutionalized bundle the holds a mirror up to America now.