I justified asking for studies. At no point did I claim to have spent hours searching pubmed. How hard is that to comprehend?
Have you ever tried searching pubmed and vetting studies by reading abstracts? It's not like using google and clicking on the first result.
First off, searching for studies backing up some claims will always introduce confirmation bias. Secondly finding relevant studies, vetting the search results, by reading the abstracts, validating the scope of the study, deciphering the methods used, etc, will easily take the same number of hours as OP would spend in minutes to copy paste from their bibliography system.
At the super budget prices Cisco charges, do you really expect quality control to be included? You've got to buy a quality control subscription for that. /s