Yeah, I watched it. Not great, but not as bad as I was expecting. I don't know if I will continue to watch; I'll try at least one more.
As for the non-swimmers, two thoughts:
*I hate to resort to stereotypes, but if "white men can't jump," I'm afraid "black men can't swim." In the Olympics, we saw one black man winning swimming metals. However, a high percentage of blacks don't swim at all or don't swim well. I am not sure if it is lack of opportunity, cultural, or what. When I heard the competition, I wondered if they make it.
*Decades ago, I was on my high school swim team and Coach encouraged us all to go for Water Safety Certification. (What the Red Cross called lifeguard training back then. They have new names now.) It was mostly how to rescue, but one activity required us to jump in fully clothed, try to swim (VERY hard, even for swim team members), then tread water, and disrobe to our bathing suits. You can't swim a stroke that involves lifting your arms out of the water, and even breast stroke and side stroke are MUCH harder, but he made us try and see. You need to be VERY comfortable in the water not to panic. Gear would make it immeasurably worse. I wonder how much negative bouyancy the gear had.
If you are a manly man (both were), it may be very embarassing to admit your weaknesses. However, if you are uncomfortable in the water, or a weak swimmer, I can see that situation leading to Panicville. Frankly, I would decline unless I could determine the gear had net neutral bouyancy, and I was only overcoming increased resistance. If I were younger and in better shape, I might agree to gear negative bouyancy that was smaller than MY positive bouyancy.