Yes, but is going himself the smart thing for a commander to do? His attempt to destroy the Xindi weapon in Zero Hour wasn't the first suicidal mission Archer felt obligated to do himself to spare others. He did the same thing at Azati Prime. He should have planned for the worst case scenarios: the weapon wasn't there or the attempt to destroy it failed. If the worst happens, and the first attempt fails, who is the best person to command in the the wake of that sort of failure -- the captain or one of his senior officers. The captain of course -- especially since it was drilled into our heads that Archer was the only one who could prevent the Xindi from destroying Earth. Even on a small ship like Enterprise, the captain should keep overall control of an operation and be prepared for possible repercussions if things go wrong.
I would have a lot more respect for Archer if he didn't have borderline suicidal tendencies, a well-developed martyr complex and an inabililty to delegate difficult tasks to others. I know that were trying to showcase Archer as the hero, and that's reasonable. He was the star of the show. It's the way TPTB went about it which doesn't sit right with me. Even sergeants are called on to send squads out to do reconnaisance, and sometimes people don't come back. Archer should be able to make those kinds of decisions.
Enterprise was at war, facing a ruthless and determined enemy, and Archer's wringing his hands over killing a couple of Xindi in an isolated listening post.
ARCHER: An hour ago I gave the command to kill three Xindi in cold blood. A month ago I had Phlox create a living being in order to use some of it's tissue, then I watched him put it to death.
TRAVIS: Sounds like you're saying this is some sort of penance.
ARCHER: I'm saying I won't order anyone else to die.
People get killed in wars; that's why they're so terrible. Three dead Xindi and Sim are not adequate reasons for a captain to place the burden of command on his subordinates. Yes, he stole the warp core, but he did everything he could to help those people get back home. That was a tough decision for him, and he made it, but then he really had no other choice. Trip realized early on that this had the potential to be a suicide mission for the whole crew. Archer had to know that that was a possibility. If he didn't have the mental make-up to make life and death decisions, he should have told Admiral Forrest so that Starfleet could have put another captain on the Enterprise bridge.
I guess that sounds a little harsh, but this has always bothered me. In wartime, twenty-something lieutenants are called on to send men out to die. "The Band of Brothers" certainly illustrates that. But Archer, the captain of Starfleet's flagship, can't bring himself to make those same tough decisions. I'm sorry, but hero or not, that's just wrong.