Well that's a point a lot of other people have raised and is the one I am trying to make, Godot and the associated ecosystem could become like the next generations Javascript. Companies didn't start investing an enormous amount of time and effort into improving JS because they wanted to, they did it because they adopted it and then ran into cases where they needed the performance.
My point being that a lot of the concerns are not foundational to Godot and GDScript and can be improved if there is an investment. But that investment will come with adoption, not the other way around.