If RAS is listed as "overvalued", following the conventional meaning of the term, the person who put it on the list is either hopelessly incompetent or has a deeply underwater position in RAS and is desparate to extracate themselves.
RAS is one of the most "undervalued" stocks in the market (e.g. it's intrinsic value exceeds its market value). That's true by several measures.
The site does look interesting and I will certainly look more deeply into it after this letter wondering why, despite your assertion, RAS is NOT listed in a table on the home page under the heading Top 20 Overvalued [US companies only]?