Earlier quoted context omitted.
Wait, did Gravity do something besides getting basic spaceflight wrong in visually compelling ways?
It wasn't only basic spaceflight. It was basic physics in general. Like when the two protagonists are somehow hanging off the ISS and Clooney has to let go because Bullock can't pull him in. It's a huge important moment plot wise and is really really dumb physics. I still don't even know what the filmmakers mistakenly thought could pull on them in that situation.
If that's not just a post hoc rationalization, the film certainly doesn't seem to convey that effectively, though.