No, Wyoming is not giving up on deer.
Many of the quotas were changed to reflect a realistic management goal. Many of the quotas were set a long time ago and were likely never reasonable from the start.
There were some problems with some population models, but that has been adjusted and IMO, the WYGF is doing a pretty good job of being as pro-active as they can with mule deer.
There are currently MDI's and Mule Deer working groups in nearly every region in the State. The GF is also conducting a lot of research to figure out what is going on with mule deer. Migration corridors, migration routes, fawn survival, habitat issues, etc. etc. are all actively being studied and worked on by the GF, BLM, FS, and NGO's.
Not sure how anyone could conclude from adjusting a decades old population objective to something more attainable and realistic based on habitat, carrying capacity, and past herd numbers is the GF "giving up" on mule deer???
There is, and has been, a ton of effort put into mule deer management in Wyoming.