No low angles, apparently :/
DIT is indeed "Digital Image Technician", but for some reason the article uses the terms "DI" (Digital Intermediate = mainly refers to the process of digital color correction) and DIT interchangeably. You're right to be confused :)
This absolutely doesn't qualify as an infographic (google the definition, if you need), just a bunch of very poorly arranged text and lines with some pictographs. If Zacuto actually paid anything to the "designer" - they've been robbed. Any proper design agency would never accept the maker of this even for an interview, let alone hire. I wish I could comment on the content, but I really wasn't able to make anything of it.
Just to mention: you don't save much on storage costs - since you still have to store and back-up all the large DPX files from the scan. They're huge, with each frame at about 30-50 MB.
And of course you have more detail and resolution with 35mm vs 16mm. That's just silly to claim otherwise and this person obviously didn't test and compare properly. A well exposed, well scanned 35mm 4K scan has an INCREDIBLE amount of detail. It's a marvel, really!
The most important tip: In between the tasks - always be close to the 1st or to the camera and keep aware of what's coming up next. If a 1st has to look for you at any point - that's a strike. It only takes a couple strikes to assure replacement for next project. A pro-active, attentive and swift 2nd can be brought up to speed on any particular task he might not have mastered yet.