Lol, do you even know how little an emitter costs when you buy them in multiple spools of 1000. It is probably one of the cheapest components in a light. Some people, including myself, would be willing to pay $20-50US more for a light with a hand picked emitter close to or right on the black body radiation line. The premium price would easily offset throwing away a certain percentage of emitters. Or, they could even resell them to budget light makers at a discount. They don't have to do it for every line either, maybe just the C and D models. And, the lower MacAdam Ellipse step rated emitters they could purchase the lower the number of rejects there would be.
Yes, I do. Do you? It's probably the most expensive component in a ZebraLight (except for the machined body itself).
It's not economically feasible to throw away that many emitters. Even with the 2-step MacAdam ellipse region you probably have to throw away 90% for that near-perfect tint you are looking for.
Take a step out of your filter bubble and realize that there are only very few people like us who are looking for that really perfect tint. Most don't even care for neutral white or high(er) CRI.