You're right. I've never debated the idea that Stapp playing Creed stuff would booster his career. In fact, it's a great way for him to build up his name in the music industry again. However my issue is why live on the past? If Stapp wants be known as "that guy from Creed" then let him play as much stuff from Creed as he wants. If he wants to be known as "Scott Stapp" then he should solely focus on his solo career and not Creed material.
I thought Stapp sounded pretty good in the performance. However his voice is still not the same as it used to be, and it's very clear. Just pop in a bootleg of Creed from 1998 or early-mid 1999 and you can hear a tremendous difference. Anyone who says otherwise has to be completely biased because it's very apparent he doesn't sing the same as he used to. Before Stapp used to hold notes longer, sing high notes higher, etc. He doesn't do that anymore.