Can you do it like that?
I probably could if I put in the training hours but why would I want to?
All martial arts have in common the ability to stop physical violence directed at you. There are different meanings to "stop" and different strategies to achieve that, but this is the base to everything else a martial art may have to offer. Without this base, everything else has a quality of a fake town in a western movie; buildings tend to collapse if you lean on them since nothing supports the walls.
The physical practice demonstrated in those videos lacks that basic quality and as such doesnt justify the " martial" adjective.