I dont think its anywhere comparable, consider that linus is a tech media instead of tech engineering and he cut it with a reciprocating saw on a vise, cutting as close as he can dare to the heatpipes . He isnt an engineering firm crewed by 35 -45 professional engineer or even toolshop workerbecause its very difficult to trim even 2-3 mm off a metal part.
Linus from LTT ruined a GTX 1080 Mini, & he has a real tech business, with professional staff of 35-45 people.
this guy would just be cutting an l9 x65 as an experiment i would assume