I did this one last year and it was a very beautiful hike, very steep like the grouse grind, and one of the best ones in the area seeing the Fraser Valley and Chilliwack!
I would remove the video if it contains prohibited activity. It doesn't need to be a lesson to others. Anyone who buys a drone should have the responsibility to read up on regulations.
I did the same hike this past year and ran into the same problem with the trail flooded and the lake closed ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_BtW672eJok.html