Except he hasn't watched Gokaiger, so your argument is invalid. He reviewed the Dragon Ranger arc. That was it. Does it really matter? We enjoy talking about it. Plus, it's not like there are a lot of options to go to for Toku reviews be it Sentai, Power Rangers, Kamen Rider, etc. Is he required to do so? He shoudln't have to watch the Sentai series just to review the Power Rangers version. They're two separate entities. That's like telling someone who reviews Voltron or Robotech that they need to watch Golion and Macross first. There is nothing more excruciating than watching something because you have to rather than want to.