That particular Xkcd comic has been posted 79 times in the past year or so† and has quickly become a cliché. The authors' stated goals are to make a "purely functional" and "practical 100% free" package manager.†† They don't mention competition, proliferation, or winning market share. A vague hope of consistency and cohesion accompanying the announcement of a program "approaching its first alpha release" isn't a rallying cry. I think they made this announcement simply so that people interested in this sort of thing might take a look.
† http://www.hnsearch.com/search#request/all&q=http%3A%2F%...