I would normally agree with you on this, Walker, but the Convention Center has already done the damage with killing any potential "vibrancy" on the east side of High St with that god awful remodel it did several years back. Hell, I'd rather not look at that monstrosity if I was a guest staying at the hotel and going to the convention center. The west side is going to be plenty vibrant with the hotel traffic, NM, Barley's, Knead, Deepwood, and possibly Flip Side.
I agree that the Convention Center needs a sidewalk-facing makeover with retail included...
...but that's a completely different argument. The addition of the skywalk doesn't make any difference there.