Re: U.S.S. Curry and other ships from DS9
Not every design will work as originally conceived, and certainly there's no reason Starfleet couldn't get around problems by specialization in some cases. The Defiant class springs to mind, having originally been a failed experimental weapons platform with a lot of highly modified systems. It was only the threat of the Dominion that led to its bugs being worked out.
"If you think you're brave enough to walk the path of honor, then follow me into the dragon's den."