For instance:
> Brand is what's left when the substantive differences between products disappear.
I think, for better and worse, brands are a lot more than that.
Brands at least start out as a designation of quality, but in modern society, they're an important part in companies avoiding legal liability, and having more distributed supply chains.
Nike couldn't be the global brand it was today if it directly managed all its factories. Modern brands are a part of the economic landscape that is fundamental for making the kind of distributed supply chains that allow globalisation to be possible.
I think the essay mixes brands a little with conspicuous consumption, which can also happen without brands, like with artists or jewels. Its just that brands are so ever present, its not always obvious to see these examples.
So yeah, we definitely are in "the brand age", but brands definitely aren't non-functional at all. The world really would operate very differently without them.