What this game already does is have somewhat equal hight between genders (if you go with F 100 and M 0):



Exception being Au'Ra.

Personally I don't think proportions would be an issue if you scale them up equally:



A forum is there for suggestions and general feedback, I don't get why people feel the need to discuss technical side of things like they were the developers themselves.

I don't see it as much of a problem as an artistic choice but I'm also all up for more character customization options.