While SLC does have a lot of parking, not all of it is bad, so to speak.
In the image:
Some of the parking shown isn't surface lots but garages, with ground floor retail such as the downtown Harmons, the lot behind Sigfrieds, and the Wells Fargo parking garage. These have street level activation and don't really impact the pedestrian experience. Additionally, a couple of the surface lots have been or are currently being developed since this image was created.
I do think that we will see a reduction in surface lots over the next few years, while some may become structured parking for nearby projects (Theater Tower and Block 67) others may be replaced with new developments (NE corner State and 4th South).
As transit options increase, we will see the need for parking to continue to decrease.