I think you're getting at the heart of the sentiment behind the original quote better than the blog post.

The blog seems to be treating it as aspirational -- a goal. A puzzle to be understood and applied to make our lives richer. It's more of a perspective shift.

When you really get it, you won't think you're supposed to like bad sandwiches -- you'll realize what a gift any sandwich is. What a gift it is to sit in any crummy airport eating a soggy sandwich. You won't have to try to like it, you'll cry with gratitude at how lucky you are to even be there.