Good. As I was reading, I was wondering why it wasn’t what you just described, which is obviously way better.
I’m not sure why Guinness felt the need to specify hot dog sausage , though perhaps it’s to differentiate from a hot dog sandwich , the existence of which continues to reign as the greatest controversy of the modern era.
This is a hot dog:

They said hot dog sausage because that’s what it is without the bun, I suppose (i.e. during flight).
This is a hot dog sandwich:

I know there is a controversy involving hot dogs and sandwiches, but I don’t think it’s involved here.