As an executive coach, I often spend time with my clients supporting them to be more effective by focusing on and enhancing their strengths. This always made sense to me. It's more efficient to build upon your strengths than to commit to the heavy lifting of addressing weaknesses, particularly with no guarantee of success.
First let's get our semantics straight. This list is about trends, not fads. The difference being that a fad is a phenomenon that blows up quickly, lasts only for a short time, then, fades away. A trend is something that gains momentum and can create long-term impact in the way people think or behave. In other words, a trend is a "movement."