This argument is invalid, and silly to bring up a Vs. thing. To begin with, both parks are closed in Cali. In addition, Disneyland set up an opening date on the 17th and was ready to go while USH didn't and was holding off. You can't pick and choose to fit your narrative. Both resorts are doing what they can with what the state gov't allows them to do. WDW opened later because of several reasons, including their size and furloughing a majority of their workforce. Their decision had nothing to do with the other, and vice versa. Not to mention, they are still going to open on July 11th so it really doesn't matter who opened first if the argument is it shouldn't be open at all.
In regards to Halloween - HHN and Not So Scary are completely different events. Not So Scary involved fireworks (which are on hold), a parade (which are on hold), and Trick or Treating (which is obviously a no-no right now). Without those core activities, you have no event - so ipso facto - no event will be held. With HHN, you can institute social distancing to a degree, as you're going to be inside the haunted houses for no more than 5 minutes, limiting capacity, and utilizing virtual queues will help spread the crowds out. They are obviously banking on things to be different by Sept.
Now I'm not going to argue whether it should be open or not or if it should be cancelled - just pointing out the differences between the two.
No, we're not pretending. I think it's been a bit since you've posted or visited but there was a Forum Alert when COVID began to be an issue stateside that informed the users to keep COVID talk to the COVID threads and keep everything other thread relegated to the topic. I probably should bring the alert back.