Except that guy who is "totally wrong" was the key grip for Batman Begins, The Dark Knight, Minority Report, and has about 30 years of experience. So something tells me he's more qualified to speak on the matter than anyone here - including the people in the video.
There is a key grip that colleagues of mine have worked for who demands that you put your sand bags on the second leg instead of the first one - and will yell at you if you do it the other way. A good thing to remember: the "right" way is whatever way your superior wants it.
I completely disagree with this. I just wrapped up a 5 week feature on an Alexa XT, then did 3 weeks on an Alexa Plus / Amira gig, then did 3 weeks on Epic Dragon back to back to back. The difference in usability and image quality between Alexa and Epic Dragon is absolutely noticeable. There are a lot of little things, but those little things add up. After working on both systems pretty extensively, it's clear why Alexa is on top.
I just got off a production where we were using the new digital series batteries from AB. We were carrying two 190w, two 150w, and four 90w batteries, as well as two VCLX blocks (on Epic Dragon). They might look funky, but they're awesome batteries - those 190s lasted close to 2.5 hours each and we were powering the camera, 3 axis lens control, teradek, a TVLogic, a Cinetape system, and a teradek off of the one battery. Very impressive.
"considered to be some of the best glass in the world"
That is not even kind of true.
"filming in in the flat color palate of cinestyle"
I'm not sure how to respond to this...