Navigation Removal Trick Impacting Google Rankings Algorithm?

An SEO, I believe his name is Dido, asked John Mueller of Google in this morning's video hangout if Google is aware of a trick some sites are using to combat any negative impact from the August 1st medic update. John was unaware and confused by the strategy, saying he would only see a downside to removing a site's navigation in terms of how it would hurt the site's ranking in Google....