Most good battlefielders will agree stealing a enemy tank is incredibly fun. Nothing better than a driver getting out to kill you and you punishing him by taking his own tank, especially when it leads to something like this .
However I have a concern with the animations making it harder/impossible to steal a tank. If I am on a enemy flag and a tank driver gets out and I go to get in the tank and get killed in the animation I would be kinda sad. Hopefully they shorten the animation. Just my 2 cents.