let's also do away with those risky windows
being able to look out and SEE where you are - oh the horror.
More seriously, exactly what risk do you see here? With a watch and a very basic knowledge of airspeed/course you could figure out almost exactly where a commercial flight is anyway, and in addition even if you know the location down to +/- 1 meter, so what?
And if you take over the cockpit, I think we can all assume that commercial airliners have some sort of tools which allow the pilots to know where they are.
Unless you're positing a scenario where blowing up the plane at some VERY precise spot is critical, I just don't see a problem here. What are you worried about?
Bob