The Dungeon portal should be banned on M200, because if there is any hiding spot (like Medusas, for example) on turn 121, there will be 9+8+8+2 of them, which is more than 9+8+2 with a hiding spot but without a portal. And it becomes even more noticeable if Manticores or Minotaurs are used, and even more so if there is a portal in two cities. I would like to hear the judges' reasoning for why it wasn't banned.
I also believe it is necessary to ban Guildhall 4 and 5 on all templates, as it cannot be built in every castle.