It feels like the awakening of the taekwondoin.
I've been seeing and reading a lot about this in karate, and I don't see why poomsae and kata would be used for different reasons. I know this has been overlooked in karate as well, but I've mostly found info about it only in karate (but I know there are a few sources in taekwondo, anyway). It is good to see taekwondo people now working on poomsae applications, I do believe they were made for that (among with other finalities). The video seems to show still only very basic uses for the movements, but I believe it's already a great improvement compared to a sequence of movements students often learn only as a requirement for grading.
Anyway, I believe who studies poomsae applications should probably be better with self defense uses, but as for "in the ring" it becomes problematic. At least for WTF rules (the only rule set I know better), it doesn't seem very useful, once so many techniques are forbidden and other are not recommended for not awarding points.