TPC Scottsdale 16th Buildout Video: Why Not Make It Permanent?

The fascination never ceases with the 16 at TPC Scottsdale, especially from casual sports fans who take notice of the antics and energy.

Even golfers who play TPC Scottsdale love sharing photos on social media of themselves playing before an empty "Coliseum", imagining what it must be like.

So while watching the timelapse video from the PGA Tour, I was left to wonder again: why not make this a permanent structure?  I'm guessing this is a permitting or zoning issue. But the surrounding grandstands have become so massive both in size and popularity that a permanent conversion would make sense. No?