I would like to pretend that I am shocked but I know what non-scientists are like.
This kind of thing is important, though. Owlcation needs to get away from the complete amateur thing and try to make it to the pop science league. I can just about manage that sort of level myself, at a push, but my heart sinks when I see spiders masquerading as insects.
Personally, I reckon they should be targeting teachers (retired or merely poverty stricken) with ads for olwcation, and hinting at a nice trickle of money if they submit useful articles. But hard to do without a real structure.
Another idea: Instead of renaming the entire category, they should include Arachnology, which is missing presently, and just move those hubs about spiders.
I think that the Hubbers who wrote about spiders may know better, but had no choice but to select Entomology as the next-best topic category for their hubs. However, this miscategorization lessons the authoritative nature of Owlcation.com.