It's not 'suspicious' that she was discharged w/o going to a rehab facility.
I had pneumonia about 8 years ago that knocked me on my butt and was in the hospital for 5 days because of it. It had spread quickly to both lungs, had a temp of 105, racing heart rate, couldn't talk, couldn't take but a few steps without needing to stop to catch my breath.
Upon admission to the hospital in the ER, the doctors were all talking about maybe needing to intubate me because my O2 levels were so low. Was on 2-3 IV antibiotics plus oral antibiotics for 4 of the 5 days, then oral antibiotics after that. I was discharged to recuperate at home. They sent a home health provider to my house to provide supplemental oxygen. I needed that for 3 weeks after the hospital admission ended.
I've got some permanent scars now in part of 1 lung thanks to that whole ordeal. I'm glad that Mary Lou Retton made it through. Going through that is real hell.