While it is understandable that the founder of Wikipedia should feel that corporations and editors should be the sole arbiters of relevance and appropriateness, it does feel like these comments miss the point. The Google Spain decision was not about censorship, it was about the right of a private individual to have some control over personal information.
There certainly is a debate to be had about where the boundary line should be drawn in an online world between that control on the one hand and other people's freedom of expression on the other. But assertions of censorship, and denial that there is a balance to be struck, shuts down that debate before it can even begin.
What we may not do, if we are respecting freedom of expression, is use the force of law to suppress a link to content that is legally published and true. It is not appropriate for any government to attempt to force its judgment of what is “relevant” on anyone.