The issue is the dating, how it was arrived at, and why is it valid. No one wants to answer those questions. That is the issue, not insulting everyone they do not know “has never cracked a book.” What a joke. These guys say this, post silly vidios, and expect to be taken seriously? Address the issue, don’t waste your time evading it.
When you say “no one wants to answer those questions, do you mean commentors at FR or the authors of the article. If you are referring to FReepers, then they probably do not have the answers to your questions without knowing which of several possible means were used to provide the date. I went back to the article and at the bottom is a link to the Abstract: http://www.sciencedirect.com/science/article/pii/S1040618215004553
There are also links to the publication where the more scientific article will appear and the sponsoring university. The technical article is still in prepublication and proofing so the date of publication is not yet known. The article here is meant to make people aware of new findings, not answer a lot of technical questions which will appear in the Scientific Journals. You have to read the journal articles to try to get those answers.