The content finder has both pros and cons. The pros far outweigh the cons.

Content finders do in fact dilute the "community" aspect of MMOs, but it also strengthens the accessibility of content, which is probably a larger deciding factor when it comes down to "should I continue to pay my monthly fee."

SE can alleviate content finder cons by actually restricting NEW content (defined as content in the past two patches) to be available to a content finder grouping via server residents only. After two patches pass, those dungeons/instances/content become available to cross-server grouping.

If SE requires a black and white approach to the content finder, it is FAR better to have it than without.