I don't disagree with you. As I said, his impulsive actions were misguided from the perspective of his own and his people's well-being. He's a flawed character. The fact that they WROTE those reactions from Lor'themar et al means that Blizzard is deliberately crafting that as part of his narrative arc.
This thread is like parsing Varian Wrynn's character before Wolfheart. He was impulsive and reckless, i.e. flawed. As the narrative progressed, he grew from that into a more strategic warrior.
At this point in the overall story, Baine is at a low point in his own narrative arc. Come back and talk to me in an expansion or two (or less if Sylvy sends him off to the glue factory) and we'll see if they've progressed anything.