I watched the video and even in that video he wanted to do something bigger badder and stronger. So stan decided to make a god. Never in that video did he specifically say Thor was stronger than Hulk. he said Thor was the strongest of the norse Gods and making Thor put him in the same league as Hulk but in no way did that video put Thor above Hulk in strength.
Right, Stan decided to make a god and Thor was his choice to be BIGGER, BADDER, and STRONGER. He never said anything about same league as Hulk. He SAID BIGGER, BADDER, and STRONGER and we got THOR!