^^I can see how removing Stealth sounded like a good idea at the time. It was unrealiable, and SFDK had just finished adding several coasters year after year for the past few years. The park decided not to compete with Six Flags, in order to be more family friendly. So, they built Boomerang Bay, which was more a success than Stealth.
However, I do still wonder if it would have been better for the park in the long run if they kept Stealth. My reasoning is that, after 2003, Six Flags decided to take the family-friendly route as well. Before S:UF, I saw many advertisements for SFDK that featured few to no coaster shots, instead just animals. With these advertisements, it is clear they were advertising for a family environment, and, after this season, I could easily see them going back to the old ways of commercials. on the other end, now most of GCA's commercials feature coasters in them. CGA may not have been desperate for a new coaster at the time, but attendance has fallen so much that they are now one of the most desperate parks needing a new coaster. And, thankfully, they are getting one, now.
And, in terms of capacity issues, it does seem like Carowinds did work out the bugs with this ride. The four ride ops they had were only stacking for 10-15 seconds!
I am sure the supervisor crews on stealth did their best with what they had, but you really do need a big crew to run one of these things, which it doesn't seem like Paramount was willing to provide to PGA. Also, Carowinds did solve the issues of baking in the sun, with a covered final block brake, complete with fans.
Although BoomerangBay was a hit, I do wonder if keeping Stealth would have helped in the long run.