Yep. However, I think the stouts are aimed at different enough markets to justify their continued separate existence. Though, of course, with the decline in stout sales generally it would probably make business sense to kill one off.
Similarly, with one company making all of Ireland's Heineken, Amstel, Fosters, Miller, Kronenbourg and Coors it's probably time at least one went. And since the article suggests that Carlsberg will own Kronenbourg under the arrangement, no prizes for guessing which one gets the chop first. Big loss.