I believe that is due to the audience. You know that people have discussed every aspect of the headsets to death here and when you report on them, you tend to focus on representing the points objectively and precisely. And we are by now trained to think that way too - to a certain degree at least.
I had the same experience when I reported on the V2 hands-on in my favourite German VR forum: I went through the list of criteria one by one, and when re-reading it the next day felt that it almost sounded too sober, unexcited. My conclusion still was that that would surely become my new favourite VR headset and mark my personal VR 2.0 experience, yet I reported clinical. We are not going about it like somebody who hasn‘t heard of Pimax yet, so there is a clear expectation that it is much better than the ol‘ Rift or Vive, that‘s just what we are expecting since a year, that will not surprise you. I think many will get emotional only when the checklist analysis has been carried out and they get immersed in their favourite games.