Yeah, and Ardenweald looks like other Azerothian zones, but that doesn't mean they're the same. Hell, Elunaria isn't even about Elune, but it does share her name at best. If you want my take on it, I simply feel the Titans got their ordering and tech shit as an attribute of their Creators AKA the First Ones. Reminder, the Cosmic Pantheons are their "children", and the Forces and Design are their machines and specimens of which they could create the Workshops from, and the Automa are their next layer down who build the realms from these shops. The Titans as the Pantheon of Order have attributes of controlling aspects of Reality and making sure it is safe and balanced, hence why they also have similar things such as Forges and whatnot, but on smaller scales. Death and Life's Pantheons help maintain and hold sway over the souls of Reality and helps make certain life and death are balanced out there, and Light and Shadow's Pantheon exist to keep the melodies of Creation intact, to make sure Darkness doesn't consume all, and to make sure Light doesn't conquer Reality and the other 5 powers in a crazy fucking blindening rampage. Chaos brings meaning to Order, and so their leadership either consumed eachother cause they are Disorder, or the First Ones simply didn't even give them a leadership at all LOL!
It's less that these are really connected cause the First Ones are "titan-ish", but it's just that people like Eonar, Elune, etc have taken aspects from the First Ones and their ordeals but not one of them were given all of these gifts and aspects for each power LOL. Also, that's also possibly coincidence tbh, as to why there's "green" there and whatnot.