Of all our beloved TCMAs, the one thats been truelly butchered is Taijiquan. Most (Im gonna borrow that Family Guy word again) "normies" aren't even aware its a martial art. The Tai Chi situation is just as messed up as Yoga. Alot of the so-called Tai Chi instructors dont teach anything that bares the slightest resemblence to the original art. You mostly see alot Native American chanting, scented candles, and the like.
On a sidenote, a little while back I saw an advertisement for "Yo-Chi", a "fitness" system that combines "Yoga" and "Tai Chi".
So I'd say that the "New Age" has dragged Tai Chi through the dirt as much as Yoga.