IMO, i am a believer of the Iso acoustics pucks or isolation feet. In my particular case, the improvements i heard was predominant when i was using it with my Falcon Gold Badge LS35a. i don't have floor standers so no comment on that.
I was skeptical so I did a blind test A/B test with the wifey and she too notice a change on the spatial and overall dynamics. Obviously these are Subtle changes !! but there is something different and we both like what it brings to the sound.
regarding the video, i saw that a few days ago and , hmm.. we all have opinions and comments. lets leave it that way.
In summary, I believe in what Iso Acoutics brings to the table. since that small revelation i got from using it to isolate the LS35a from the stands, I have used it now on my ATC speakers and also used it to isolate the LTA Microzotl Pre and VPI Prime table