Absolutely there are single-wall tents that would be better. My go-to is a Gatewood Cape. The bothy is an emergency wind shelter/tube tent/poncho/pillow... It's not great for any of these uses, but it can be adapted pretty easily.

I've only brought it along a couple of times, when we were going to spend a lot of time above treeline away from the shelters in the afternoon, when storms can roll in very quickly and be severe.

The last time I brought it, I also intended to slide it over my hammock if the weather got crazy, to protect the precious down underquilt and add a few degrees of warmth. It turned out both days and nights were calm, so I had an 8 ounce insurance policy that I didn't use.