Well I think that it's nice that they allow some sort of blade sign, but the ordinance needs to be changed, especially if they are striving to create an entertainment district somewhere in the city. 9 sq ft per side is so tiny, and the fact that a Parking structure blade sign can be the same size is ridiculous.
Case in point, in my former residence (Cleveland) an old run down street has been turned into an entertainment district that has truly helped revitalize downtown. The street would have nowhere near the same character without the blade signs. I'm not proposing allow them all over town but maybe in specific overlay development zones, for instance on a half street like Regent, Richards or Exchange (just to name a few).
Check out all the blade signs in what is called East 4th Street.
If I can get a development proposal going and picking up some steam that has a large entertainment element to it, I will approach Council in my development review to either change the ordinance or to apply an overlay or variance to create something like this. A perfect place for this would be in UrbanBoys, 400 S - 500 S/Main - W. Temple proposal (somewhere on the SLC thread)