I truly believe...
I truly believe we are getting Moon Girl (either Robo Moon Girl or an aged up version not tied to the current Devil Dino) as a Strategist down the line
I feel they wanted to give both characters their space to shine.
This is based off of what Miller Ross said about them wanting to incorporate Moon Girl differently than as an extension of Dino
Could it be cope?
Maybe.
But truly she works as a Strategist and Dino works as a tank so perhaps they wanted to split them up.
We didnt get Blade until a few seasons after he was first shown so im patiently praying and waiting that we get a true version of Moon Girl (again im fine if they even do the Robot she used when she was grounded to make her a smaller stature character like rocket but still be safe from child harm)