Tim Cook: "I think you're really going to like this next feature..." Shows a 2 minute video on cases. "Isn't that incredible...we're now offering Sunburst, Sky, and Mint silicone cases.". aka Orange, Blue, and Green...
I think it's pretty clear that it was intended as sarcasm. As for the point… seems a bit of a strawman. The same kind of silly discussion as every single time there are new emoji.