There is also the fact that everyone is massively overlooking:
Tying to fight for a position against a car that is significantly faster than you will cost you more time than just letting them pass, especially when the performance and driver skill difference is so high. He would have just been delaying the inevitable DRS overtake. It was so early in the race and TR are not racing Redbull's, there racing Caterham, Force India etc.
Drive smart, drive fast. Isnt that what everyone's been complaining about Lewis NOT doing over the last 2 seasons?