That's all an interesting Theory. *cue drum and snare* and Theory would be delighted by the idea, but the notion that they could afford the same qualities as The Row would be news to them.
Again, it's sort of like saying "In the future, I don't think Loro Piana will have a market for expensive cashmere sweaters because there are cheaper options in the market." Oh but they can and in fact their business is BOOMING. If anything, after this ridiculous streetwear arc, I think we're going to see a new appreciation for classic, timeless, uber luxurious and well made clothes. That's just my own theory, though we're already seeing that current at Celine.
But, I won't disagree, and neither will The Washington Post's Robin Givhan in her review of the show, that the prices of the clothes---regardless of whether they are plain or not---just seem a little ridiculous. But they're selling very, very well. The basic are the core of their business. They have been for awhile.
You talk about Raf furthering the Jil Sander story but did you ever think The Row has an appealing one of their own? Even if it's for a listener you don't understand or a tale you don't particularly want to hear?