I'm starting to think blasters are pretty terrible weapons. Ezra and Melch both get shot square in the shoulder. That happens with a solid slug rifle and you are either dead or down for the count. Only Gregory is fatally wounded and he's shot square in the gut.
Ezra shrugging it off is kinda passible because he's a Jedi. Maybe ugnauts are made of sterner stuff?
(FWIW, I'm being deliberately awkward here, I KNOW 'shot in the shoulder' is a common trope where if you get shot in a 'non vital' area you can just walk it off)