I don’t think covid can be blamed for poor viewership of the Olympics, it didn’t hinder people’s ability to watch TV, and the problem was already apparent beforehand. The attentions are just so split that the Olympics are no longer the same cultural event they used to be. I remember in 2010 and 2012, people both in person and on social media were widely talking about the Olympics. It started getting less popular after that, and 2018 felt like the majority were no longer watching at all.