There's a community note claiming there was no pooping, but somebody posted a picture in the comments showing where poop was smeared on the carpet, and calling of the falseness of the community note. The community note claims the 12 toilets were all clogged with rags.I see no pooping.
The whole situation seems hard to believe. I mean, I believe the plane had to return to Chicago because all the toilets were inoperable, and I believe that the problem had to do with it being a planeload of Indians, but it's still amazing that they could actually overload all the toilets on the plane so early in the flight.