The problem with beer consolidation is what "regulating quality" at scale entails. Consistent quality in gigantic batches often translates to lower quality beer than pre-acquisition. Maybe it's just not possible to scale every recipe to nationwide distribution, but if that's the case it still means a small brewery's acquisition and subsequent scaling to national levels generally means the taste you were used to is gone for good.

Case in point, Magic Hat. The beers are entirely different since acquisition by NAB, and terrible. There are nationally available independent breweries that make quality beer - Oskar Blues comes to mind. They scaled without selling, and I have no doubt NAB or ABI would have absolutely destroyed the recipes in their own scaling process.