Has anyone considered having their slide cut at an angle or buying a plate that is slanted?

I do not have a red dot on a handgun and I do think about it too much but I imagine seeing one of the larger companies in the US doing a 1 or 2 degree slant on their slide cut and I read that people who use handgun sights often have to tilt their gun down when using a dot- to see it or have it in the middle of the window.

I don't think it is good to have two ways of holding a handgun or using handgun sights but I imagine if the above is true that it would work better if you had the same grip as iron sights and the dot was nearer to the middle of the window.

Is the above true? Would having a slanted red dot be better?