Actually Tai Chi is very difficult to do.
Doing “the forms” and doing them “in structure” is very isometric. If taught & done properly some of the “the forms” take 20 minutes to do and your thigh muscles should be screaming at the end of the routine.
It’s a “stand up grappling” martial art built around joint locks. It has occasional strikes & kicks, but the “strikes” are quite often just very powerful pushes or shoves to knock the opponent off his\her feet. I took Chen style Tai Chi for a few years and it takes a lot of practice to gain the strength to “stay in structure” while doing the routines & the martial actions. Note Tai Chi has associated with it a lot of nonsensical “hocus pocus” like “Chi flow” . My Chinese instructors used to laugh at people who believed that stuff.
Real tai chi can be tough, but this was 2 minutes of fake TV tai chi where all you really have to do is look smooth while moving your arms slowly. And Jones was terrible. Made worse by the fact that they had him on camera with somebody who at least kind of knew what they were doing, which really showed how jerky and spastic him movements are. It’s really impossible to watch an episode of Iron Fist and not wonder why they couldn’t teach a stuntman to act to at least a D level, with Jones being at best a C- actor and a hard F on the martial arts training a stunty up would make for massive improvement.