I think the best thing that can be said at this point is that the city is only offering the space for a 15 year period. The reason I say this is because there are more important areas to focus on currently.
I think we all agree that the Mall, whether we are talking about developing or landscaping it, is not what is going to make or break downtown. It is what is currently being built/rehabbed that is most important. Even if you are for mixed use on the mall, you have to agree that it is going to have to wait a couple of years to allow all of the units in the far more important Old Post Office Square, Washington Avenue, Downtown West, Chouteau's Landing, Cupples Station/Ball Park Village and Lumiere/Landing Areas to be built out and fill up. At that point the issue will be of more importance due to the increased population. More people will have a stake in it and it can be held to a higher standard.
Will sculptures sunk randomly in grass lure more people downtown? No, and if it did, I would be able to count the number on my hands...but will people be willing to venture downtown to eat a meal surrounded by exotic plants, fountains, and sculptures in view of the Arch and the Civil Courts? I think so, if it is done correctly.
I don't think that this is the best possible use of the blocks, but let's not pretend it is the worst thing either. There is a lot more pressure on this than when "Twain" was put in because the developers want to fill their buildings with residents (watch the homeless people disapeer in Lucas Park once Park Pacific and SkyHouse are built, I guarantee it). I think the work of the landscape architects,
Nelson Byrd Woltz is pretty good from what I saw on their website. The fact that their botanists will be from the Botanical Garden can only help them. I think that a cafe and coffee shop, if run properly will be a hit with the tourists, residents and office workers. It WILL draw people to eat there.
It will offer a least a better connection between the growing halves of downtown. Or would you rather have exploring out-of-towners confronted by vast empty areas of grass?