No. I bought it especially, because it has a replacable battery, which is not a factor for the vast majority I believe.

If that key would not have been switchable I would have returned it, though ..

But seriously. Who would want that excemption, unless they have already been trained in the non standard way?

Ctrl key I have to use very often. Bottom left is easy to find, even blind.

But the fn Key? Only needed at very rare occasions, so why waste the special ergonomic place for it?