Sounds like a fallacy. If I choose to not play a TV in the background on full volume in my office all day while I work, is this a result of my lacking willpower?

Also, different people have different sensitivities. Don’t be so quick to write sensitivities off as weaknesses. To illustrate: the nervous system (and most other things) depends on sensing, and would simply fail if it were rendered too insensitive. Your sensitivities are often strengths when managed accordingly. Practicing and challenging them has it’s benefits, but we want to be strategic with this rather than simply withstanding to no end.