Regardless, I do not consider these videos to show a "vibrant" life.
I have personally done over 900 dives, including some photos and video. These have been in Hawaii, Guam, Tahiti, so kind of different.
Watch the videos, you can click through the time bar pretty quick. The title photo is the best of the best of the best. Other parts of the videos basically show a boneyard with 1 or 2 species. There should be hundreds.
Also this author is doing their best to discredit Dana Durnford, so take things with a grain of salt.
Wow algae! Witty Lagoon Park - we would hope the Parks would be in better shape than the average shoreline Glencoe Cove Island View Beach Sea Anemone
Here is one from Dana Durnford