All I know is that there was an alleged 15,800 sellout (though Puroresufan.com says it was more like 10,000) at Nippon Budokan, and the match was about 20:09 long. They say it was a pretty slow match, and Hashimoto won it with a brainbuster.
I don't know how to linkify, but check out Puroresufan.com, they have some info on the show.
Perhaps they feel "Superstars" is a failed show from another network and carries that taint. Which means it'll be another 20 years before they decide to dust it off for the next iteration of Superstars.