Well, it's a start, at least. Hopefully, this means the mega brewers are realizing that consumers do care what the product tastes like
I've never tried or even heard of that particular stout, so i can't comment on that. I would hope that they use quality malts and grains. Otherwise, their wasting their time and money. A large company should have the capabilities to do good research on consumer tastes, and therefoere, brew a quality "craft" brew for that niche.
Edit: Then again, I can also see them still finding ways to cut costs.
I have had Blue Moon, though, which is decent. I don't think I'm too fond of the belgian styles, but that was certainly good for a BMC brand.