They really called their language "blog"? I have to think that wasn't the best name ever..
It will probably never get as popular as the generic term blog, so it will be difficult to search "how to do X in blog?", so it will probably never get as popular...
Perhaps they consider renaming it as bayelog or something.
Until Google "got it", searching for R was a pain (that was before the -lang suffix got popular)
Pick an unique name with several letters and a moderately used word, like Python or Ruby, it's not hard.