The link I provided is to an updated chart for 2012 (I know, that’s not very up to date anymore…) but that does not invalidate your concern. For example, the current quiz still seems to have no way to call out the fact that I favor a universal stipend for all adult citizens.
FWIW, my own position on the chart has not changed much on the old vs. the new quiz, but the proportion of respondents in the same region of the chart as I am has declined.
Also, I live in one of the cities near the top of the conservative rating in the chart from the article we’re talking about, so I shouldn’t be too surprised that my politics are a bit off from most of my neighbors.