Will stadium controversy wane?

If you’ve read my columns through the years, you’ll know I strongly opposed public funding for construction of the new Real Salt Lake soccer stadium in Sandy. It was nothing personal toward Dave Checketts or the sport of soccer. I can cite several studies by independent economists showing that the public doesn’t get any benefit out of such deals. Instead the public just loses money and lines the pockets of team owners.
A couple of days ago, the editorial board met with Bill Manning, the new president of Real Salt Lake.
I asked him if he thinks opposition to the stadium will dissolve once construction ends. Here was his answer:

I actually agree with Bill. We should wait five years or so to judge the stadium.
But here’s what I think should happen. Five years from now, the county or state should do an audit to see whether all the promises of economic development came true. The impacts should be viewed county-wide, not just in Sandy, because the hotel taxes came from all parts of the county. I’ll bet an audit would show no benefit at all.
Unfortunately, the public does tend to forget about these funding controversies over time, especially when shiny new facilities are in place. That is because politicians face little real accountability after giving public funds to help private companies.
Am I right or wrong?