I like 2e's general monster approach with 2 exceptions. First sometimes the combat information isn't presented well. The stat blocks themselves jumble combat and non-combat info together, and the Combat section in the description sometimes was too vebose to be easily useful. Second, while the Habitat/Society and Ecology entries were usually pretty good, there were occasional monsters that had little more than combat applications where these sections felt bloated.
The ettercap description here is interesting, at least more interesting than the ettercap has been in the past. I like the idea of them herding spiders, twisting forests, and collecting fairy dust and trading it with hags (maybe the hags give them something that helps them twist the forests). I can see them collecting the dust like how birds will take shiny stuff to put in their nests. The aranea link though isn't needed, araneas are their own seperate race of shapeshifters that resemble spiders, they don't need a link to ettercaps.