You make it sound like TFC had no one to learn from with regards to stadium design.
Home Depot Centre was up and running for a few years and Toyota park was practically done before a shovel hit the ground on the NSS at the CNE. Also Dallas was opened. As far design, all better than NSS. Two of those had a proper roof. TFC also knew what was coming down the road with RBNY (the nixed design was even FAR better than what TFC put up). The NSS was a dramatic step BACKWARD for the SSS popping up in North America.
Stop being an apologist for MLSE.