I do not think it's necessary to create a new nomenclature "Super Deluxe" for new high-performance lenses. Lenses "L" already fascinate photographers, but some of them need updating to be competitive with the new Zeiss and Sigma. Is there a reason to Zeiss not put autofocus in lens Otus. The accuracy of measurement and mechanism (lens and camera) for the resolution capability of Otus puts a level of requirement similar to the big whites costing $12,000. If Otus 55mm had AF, and it cost over $6.000 will sell even less than now. Nothing prevents Canon make lenses "Super Premium", but it is a niche market that may not have return of profit.
I'm not convinced that putting autofocus in a lens with the quality of the Otus is an expensive proposition. Sigma may already have done exactly that at a much lower price. Many Zeiss lenses carry the chips to communicate AF/AE information to advanced bodies, but the maker has consistently avoided autofocus motors. This may be due to many reasons (eg: patent concerns, target market, research costs, elimination of too many promising lens designs, ...). Further, I think it is the lens polishing tolerances that drive most of the cost difference. In other words, this appears to me to be a strategic decision, not something particular to this lens.
The photo market is bifurcating, like many markets. Worldwide the wealthy are increasingly more wealthy, while the rest at best maintain buying power and at worst lose some. The wealthier end of the spectrum tend to seek higher quality and better perceived value. It can make very good sense to create products targeting them even if the prices are high because so are the profit margins. Compare a Gucci handbag to one from Ross's, for example. Sure the Gucci is a niche market, but Gucci makes a lot of money.
Of course, with worldwide lens sales totaling about 57 million units in the last two years, I'm not sure I would call this a niche market. [These numbers exclude Zeiss and some other manufacturers who don't belong to CIPA.]
This also explains why Canon is moving out of the low cost camera market, but into security cameras. Canon targets expanding markets with higher profit margins. I can even imagine the distant day when Canon will no longer make consumer cameras and lenses at all because the market is too mature for them.