Flying would render the hook useless and it would be generally annoying. Also that's some serious me-too game design. Everytime a new game feature comes out theres a big crush of people asking if you can do it in torque. I haven't looked but I'm sure you can find a 100 threads on GarageGames about portals since prey came out.
And to address many of the other suggestions that have cropped up lately: AoT is it's own game. It is not a flying game, it's not a real time strategy, and it's not capture the flag. I'm not going to change the game into something else just to match new pet game idea.