Discussion of the SWM Mandalorian review show
In Star Wars, the troopers are under orders to let the Rebels escape so that Leia will lead the Death Star back to their base. "They let us go. It's the only explanation for the ease of our escape." By itself, Star Wars does a lot to subvert the tropes it's based on.
It's a shame The Empire Strikes Back isn't as clever, which is how we eventually get to Bill Burr's "I WASN'T A STORMTROOPER!" making their bad aim "canon" (disregarding Obi-Wan's in universe assessment for the out of universe one).