You're right. Reporting someone for not playing the way you think they should play IS stupid.

What's NOT stupid is reporting someone for "telling you off" when you asked them to participate in a fashion that would help you complete the duty faster.

You were reported for telling someone off, OP, not for not doing DPS. There are plenty of ways to respond to a situation like that which don't result in explosion, but you chose to explode. That is definitely reportable.