Climbing is something that basically anyone can do, it improves your fitness and reduces the load on the healthcare system. Super yachts are something that almost no one can have, probably causes some pollution and otherwise doesn't really do anything useful? How can you compare the two?

The author looks like she has to pass through doors sideways, so I can see how she might feel alienated by an activity that requires one to pull their own weight. I am quite sure that making people that are unhealthy by choice feel alienated is a good thing, all in all.