I got it.
https://facultyjacobin.com/2019/01/14/video/
Frankly, what I see is someone with some solid foundations, from which you could launch some fantastic progress. You ski like the people I point to to my daughter and say, "Hey, that's how you ski, and these are all the things that person is doing right."
Here are some suggestions.
1) Most importantly, I would not think of "confined to groomers" as a bad thing. There is a lot of progress you can make on groomers,
all of which are needed for any other surfaces. Having a solid foundation is more important than time on yucky snow flailing about. So, you can think of this season not as "not progressing" but as "consolidating my gains", even if you do not learn a single thing.
2) There are some minor tweaks that you can make... so not really "learning new things". At least you do not have the problem that a lot of people have of steering with your upper body. Your upper body follows your feet smoothly. (It's "stacked".) That's fantastic. You can from there up your game by adding some upper body isolation and dynamic leg work.
Then you can add super-short-radius turns.
Once you have all of these down pat--and, I swear, you can only practice these on groomers!--then you are ready for anything. (Seriously, I was "confined to groomers" for many seasons, and thank goodness I was!)
Really, the jump from groomers to powder is not that hard if you have your foundations... and you are off to a great start. You must have some good instincts; go with them, build on them.
3) Try to go to the hill as early as you can, especially on powder days. Go to unpopular trails with smoother snow. Then "time on the snow" will count a lot more than any other time, because you can experiment and progress without yucky snow conditions or crowds getting in the way, and you can go faster, or turn a lot, or whatever as you please. I.e., it will be more fun, and you will "consolidate you gains" even more.
4) Overall, I strongly feel that videos don't quite capture what's really going on with a skier; still frame grabs, maybe, but there are some limits. They do not really show how steep the slope is, or how rough the snow is, or how much effort you are putting in. Depending on the angle and the focal length and frame rate, all sorts of things are misrepresented. In the end, we all look a lot dorkier on video than in person; good for catching flaws, but not necessarily for capturing strengths. If you feel like you're progressing, if you feel like you're better, then you very likely are, as
@contesstant points out. If you see any movement errors (backseating, body swiveling in the wrong direction, etc.) in the video, then correct it; I know you already know how to correct these, because you don't do them in this video. Otherwise, trust how the skis feel when you are skiing (I am indirectly quoting
@Skisailor from another thread).
I hope this helps, and hope to see you with more time on the snow!