https://twitter.com/PeterSchorschFL/status/1661808463020785665
This isn't a fair comparison.
DeSantis would have gotten a bigger audience if:
1) His appearance on Spaces was announced more in advance
2) People outside of Twitter understood what Spaces was
3) People outside of Twitter knew how to use Spaces
I'll take my dad as an example. He is obviously very old, but is well versed with technology, especially for his age. However, he does not use Twitter, and I can almost guarantee he hadn't heard of Twitter Spaces until yesterday.
If I called him up and said, "DeSantis is on Twitter Spaces right now! Go listen!", he would have to google how to do this, and take a little time to understand the whole interface before being able to find the Spaces and turn it on.
If I called him up and said, "DeSantis is streaming on CNN.com! Go watch!", he would just go to cnn.com and watch it, with zero learning curve.
This is the sort of thing that people will often skip if they aren't immediately familiar with how to accomplish it. Additionally, there's an incorrect belief that you need a Twitter account to listen on Spaces, so people without accounts tend not to even bother to look.
This was a cute gimmick for Elon's new project (aside from the embarrassing fail at the beginning), but I don't think it would have done a lot for DeSantis, even if it worked properly.