Second, regulators on both sides of the border think it is a big deal and take action. That includes Canadian professional associations that have stripped members, including geologists, of their ability to practice for preparing bogus NI 43-101 "reports" for US OTC issuers. Denying a person the ability to work is a very "big deal".
And third, the fact that Mexus is making such a claim is a massive red flag. It proves that PT and Lemas are either intentionally trying to mislead investors (intentional fraud) or are completely incompetent and don't know what NI 43-101 means.