I was not able to view the video, but in the story there was no mention of using the Canon EF adapter.
The trend for shooting music videos when the budget won’t allow for 35mm,
is to rent something along the lines of the P+S Technik Mini35, along with say a couple of Cooke S4 prime lenses
to give a 35mm style depth of field to the shoot.
Using the Canon EF adapter with it’s 7x multiplication factor does not look the same.
[Jeff Newton] “would think that using a EF lens with full manual control would give you more of that”
Then again, you can switch your current XL2 lens into manual.
By the way, the Canon 3x lens is not an anamorphic lens.