I have no idea why Ka-Bar isn't making it, but I suspect it might have something to do with the time frame.
Doug has been trying to get this project off the ground since '02.
As Tooj has posted here more than once, Ethan would like to see more of his designs put onto the front burner of the production cycle, but Ka-Bar has lots of irons in the fire.
Probably, and this is me guessing, Doug wanted to see the knife come to fruition some time before 2020, and so another maker was chosen.
Again, all speculation, but I suspect there's some truth to it.
As for not seeing it as Becker, I've had some Becker knives that had no BK&T designation on them. Heck, no blade stamping whatsoever. Some of them were collaboration knives. That doesn't make them Beckers any less though. I also paid a premium for them because there just weren't that many to be found. Right now, the same is true of the Perseverance. If this project does only hit 100 and folks don't get theirs, I suspect there are going to be some disappointed people on down the road once they hear about what a great knife it is.