User blog comment:Jedi General Term/Star Wars Rebels Season 2 Trailer/@comment-5317780-20150425202533/@comment-2000765-20150428151222

I'd say that was true to the Republic Commando books. The Katarn armor can take (and has taken) fire of varying degrees, what with reinforced plating and additional shielding. Besides, there's no telling where Gregor was in relation to that blast.