Yep, this is exactly why infobiz one-pagers with extra long text blocks that never ended started having the opposite effect. It's like writing THIS IS A SCAM in bold letters. 'Customer isn't a fool. She's your mother'(C)
Sorry to be pain in the butt, but this is largely irrelevant. There are a lot of experts or 'experts' who analyze other people mistakes. However, the real data for landing pages comes from actual customers, not expert opinion, however good or bad it is. Second, the #1 mistake for landing pages happens before the landing page is even created. Namely figuring out what to offer, how to offer it, how to stand out and how to make your goods or services way better than competition. Make mistake at this stage and no landing page will save you and analyzing landing page for a bad product or a bad offer will only take you away from seeing the real problem /*rant off.
I see zero relevance in the post. The author may have learned something, but I as a reader did not. Usual marketing bullshit.