I like Storm Roll very much. It is very practical. The reasons are "Speedy Recovery" and "Connection to Paddling after Finish". Perhaps you might be good at Greenland Standard Roll. It is very elegant and stable. But where is your upper body when finishing? How is the connection from that position to paddling? Consider such a thing and please see the video below. Surely you will notice the charm of Storm Roll.
There are many dangers in the sea of extreme cold. The most dangerous among them is "capsize". If you escape from Qajaq to breathe, you will have hypothermia soon. Or you may be attacked by marine beasts. "Greenland Roll" was developed to recover quickly from those dangerous situations. Now, there are 70 types of rolls, including for competition. In fact, I think that you do not need to master all rolls, but those exercises are very meaningful. And if you master Storm Roll on a flat water, please try it out even in the rough sea. That will lead to a real skill.
Among them, a Storm Roll is my favorite. It has speedy, elegant and very functional movements. Let me say clearly, it's not so easy to get but practical. I strongly recommend you to master this skill. So, I will try to explain the wonderfulness of storm rolls and practice methods on this site. You should be able to find hints of "practice method" from the top page icon. And, if the article you wanted is not there, please let me know. I'll welcome you always.