I started mixing in 1966 but have never used cans except when recording of course.

For us all is done with our Kali studio monitors (8" woofer). They have adjustments that allow consideration of closeness to walls, distance from you, etc.
I check mix downs via our mono Apple HomePod, through our "living room system" (Polk Audio & Yamaha sub) and finally in the Subaru Harman Kardon (good sub). I do give a more casual listen via earbuds and mobile devices.
FWIW since I moved to the Kalis we both feel that if the mixes sound good on them are fine on the other systems mentioned above. They are great monitors and relatively cheap.
Caveat: I FULLY realize great mixes are done with every permutation one can imagine and of course that includes cans.
Bud
PS The vid was interesting but he did spend considerable time explaining why they specifically worked for him, i.e., traveling, how he adapted to the lack of flatness., etc.