This was clearly explained in star wars as Luke could bullseye womp rats in his T-16 back home presumably round corners. Given Chewie was made to feel guilty about munching on his McPorg with fries, I'm guessing the directors decided to dispense with a similar line about animal cruelty to get...
Some of you lot have got too much time on your hands.
On the plus side, It was a cracking opening battle, I thought the ending for Luke was well done (and he'll be back given he's the last man standing from the original), the Snoke ending was marvellous stuff and I liked the twists. I'm...