Thoose sights are perfectly made for flipping the zoom thing away and only having a normal holographic or whatever sight.
Being able to change 2x sights into normal sights
No That's EXACTLY what they were designed for. There are LOADS of 2x sights out there that don't involve combining a zoom with a Holo, red dot, or whatever...but they chose to use these. They even have the whole "siderail" key H being totally unused so I'm thinking they're planning on it? If not that's really such a tease....