I predict Genie+ will be the beginning of downhill spiral for both Disneyland and Disney World. It is, effectively, such a large ticket price increase that, combined with other injuries such as the loss of DME, will drive a significant number of fans away from the parks to the point of reducing attendance dramatically. When that happens, the lines will be so shortened that Genie+ and paid fastpass will no longer be necessary for all but a couple of rides.
In particular, I don't believe Genie+ will be incorporated into annual passes. This will affect Disneyland much worse, though it is true that if attendance shrinks, Genie+ won't be a thing. When Galaxy's Edge first opened, the Disneyland app has an option for you to sign up to enter Galaxy's Edge. Not many people seemed to want to be in there, so the option was never used after the first day. Genie+ can be ignored and forgotten the same way.
Another way Genie+ can be stabbed to death is if Virus continues to rage. The concept of Genie+, together with paid fastpass, can reduce attendance enough such that it won't be needed by anyone.
Genie+ is supposed to launch by fall. With any luck, between fan rage and Virus fear, Genie+ should die by Christmas.
Genie+ is actually good for me and my family because I can easily afford it, and it will keep many from getting fastpasses, leaving more to me. In short, it will put my family on the privileged class of Disney Parks. I still want it to die, though, because I find it repulsive. It's a stink that makes the whole park experience smell bad.
Die, Genie+, die!