You can't really expect Acer and Asustek deliver pro products
Sorry, but both Acer and Asustek are too oriented to a market which won't buy high-end products with an MS OS - products that after all broke ground in the pro market first, and not the mainstream consumer one.
I understand why MS had to design and sell the Surface itself. Maybe Dell could have made something alike the Surface Pro, but nor Acer nor Asustek.