The question is regarding equipment itself, not the skills.
It is quite possible. But as far as there is no such addon at all, it seems that there are not enough addon developers (e.g. 1 or 0) that require this thing.
This happens when it comes to high-end cash shop stuff like dead water drops (around 200$ price) or stuff like that.
As you see, there are, already, a few addons that utilize the life water drops (20$ price so many players may afford it).
I think that means that stuff that is more likeley aquireable by common people is more likeley aquireable by addon developers, which leads to more addons for that stuff being developed.