If you're going to have people in a position of authority threaten the PCs with breaking some sort of rule or regulation or law, it's always good to have an alternative contingency rule that they're definitely breaking if they manage to fast talk their way out of having broken the first one.
The classic example is when the heroes return from an adventure and encounter a tax collector. If they show off obvious signs of wealth, then obviously they can afford to pay the (extravagant) taxes expected of them. And if they are careful with their money and don't splash it around, obviously they are hoarding wealth and can afford to pay the (exorbitant) taxes. Either way, if they don't pay up, they're in trouble. You can't dodge the tax.
See Morton's Fork for more examples to draw inspiration from.
THIS IS AWESOME!
Not that it's really that difficult to dodge blaster fire from Stormtroopers. It's so easy a blind person... could... do... it...
Seriously though, what did he min? Being blind could probably get you a bonus to your reflexes or some extra weapon proficiencies, but both? Maybe he took "understands everything literally" for "almost super-human reflexes".
I expect K-2 will appreciate his martial skill the most, continuing the friendship between Sally and Pete. I hope K-2 and Pete's monk team up in the future. They'd make a much better pair than K-2 and Cassian, and they'd have some pretty fantastic action scenes.
Cassian really is shaping up to be the most unremarkable person in this group. I hope he's at least a good pilot.
Toph learned earthbending from badgermoles. But that was creatures who could move through earth, and her vision in sand was blurry.
This blind monk seems to have learned from the sandworms that move through the sand. He can see clearly enough on sand to note where all of the troopers are, and his Dodge skill is good enough for a two to be a dodge. I have changed my mind; I now think that this blind monk is the hidden Jedi of the movie. This would fit well with "you haven't even heard what I maxed yet". What he maxed is being a Jedi.
Bria is turning out to be an (in-)competent adventurer who is extremely competent at dealing death on a large scale. K-2SO is turning out to be a master of death and betrayal himself. And now Chirrut is turning out to be a master of judo style death.
Nothing but death, nothing but death, nothing but death and destruction. (Their breaths, skin condition, etc., remains unknown.)
(and I am so glad that I can copy/paste those names out of the transcripts reasonably reliably now. :-)
Clone Trooper 3: Well you're either loitering or you're jaywalking. So either way you're under arrest.
Chirrut: Now we see the violence inherent in the system.
Clone Trooper 3: That sounds like resisting arrest to me. Shoot him!
GM: Okay, Pete, make... five Dodge rolls.
Chirrut: No problem. 15, 9, 19, 2, 14.
GM: Hmm. You dodge... all the blasters. And turn three of their shots into critical failures.
Ben: Wow. So... what did you min?
Pete: You haven't even heard what I maxed yet.