“I also don’t have an opinion on whether the Maharal was able to create one. Why must one believe that he was able to create one? It seems that everyone here believes that one must believe that.“
Not that one must believe that, just that we do believe that. One must only believe that it is possible by someone, like Betzalel, or Rava. This is unless you nutralize the words of our sages by spraying ‘dream’.