It is just the way a ratio is set up in ThinkorSwim. It is a true ratio of one divided by the other.
I think that as basic as ratio charts are, they are very useful in TA. We could trade off of them if we wanted, but I just use them for watching sectors and comparing things. For trading, I think they would be a great tool for people who don't want to dive deeper into technical analysis.
In hindsight, I don't think we have been in a recession. I'm not sure anyone knows for sure if we will have a soft or hard landing. I don't really care to dig into that because I prefer to follow my charts.