Agree completely. A couple of times a year I have the misfortune of traveling through the Panama City airport, which is what this DIA plan reminds me of. That airport has an extraordinary amount of its secure-area space dedicated to high-end shopping - to the point where you think you are in a large shopping mall. I suppose the idea is that layover passengers (of which there are many, it's a regional hub) are going to frequent these stores, but it doesn't happen. In store after store after store, there are only one or two bored sales people, standing there staring into their phones.
Meanwhile, the traveling public is all shoehorned into the gate areas, which are way too small. Or they are in the tiny food court that overlooks the gate areas. The food court is a welcome addition, but it's about 1/4 as large as it needs to be. I wish some city council members could see what a complete cluster---- that airport is, because I get the feeling that's what they were asked to sign off on.