I don't see the relevance. We've always known it was supposed to be pronounced as one long word, haven't we? My understanding of the seperation in his name that the wiki decided on wasn't that it was because we thought it was two different names/words but based on precedent for how names like his are spelled in English.
Hence the all important "-". It's not "kokutan douji" it's "Kokutan-douji". The first one implies it's two different names, the latter makes clear it's one name in two sections. The dash doesn't indicate that you're supposed to pause between them.