I disagree with this statement. Based in my experience, officers don't study all evidence.
The way I understand it works:
1) You file a well organized case with as much quality evidence as you can produce.
2) You provide table of contents for your packet. E.g. "page 10-20 - bank statements, page 20-30 - school records" etc.
3) Officer checks table of contents, goes to page 10 for bank statement. Checkes the box. Goes back to table of contents, then to page 20 for school records. Checks few pages. Checks the box. And so on.
They'd only read the whole thing if they need more insight. If things look straightforward, officer checks few things and moves on satisfied.
This is based on my AOS experience. I brought tons of evidence, officer asked me for some samples, filtered through those quickly and kept what he was interested in. It took less than 30 seconds.
Submitting less has issues:
1) RFE and NOIDs add time. Isn't it what you want, to get quicker approval? Then why prolong it unnecessarily?
2) USCIS is known to sometimes skip straight to NOID or denial, without issuing RFE. This is wrong, but it happens. Would I want to deal with it? No.
This is just my $0.02.
P.S. some instructions for forms, for example I-751 explicitly asks for as much evidence as possible.