He'd only been thinking of his own experiences over the summer, anxiety and aimlessness gnawing away at him, and not being able to cast spells until his 17th birthday--
All made him feel rather useless, and maybe if the DA got up to some of their old ways, it'd make everyone feel better. "I'd trust the Order more than what the Ministry's doing. It sounds like Pittiman's going to be another Umbridge, doesn't it?"
Weirdly he didn't even flinch when Hermione said Voldemort's name aloud. "So he's trying to escalate the war and get at Harry before Harry's figured out a way to defeat him. He'll get at...V-Voldemort, won't he?" Oops, stuttered a bit there. "If Harry and you lot need help, you know we'd all be willing to offer ours."