I love it. I think it's heroic and selfless and a very difficult decision but one which ultimately has Chloe's best interests at heart. That's not without problems--I do realise that--because acting without consent is always difficult. But I do believe it's very Superman-ly. Sometimes his future identity will demand that he makes decisions for others in a way that overrides their wishes but looks at the big picture. I know 'rule them with strength' turned out to be Zor-El's line, but I always wondered if this was what 'rule them with strength' could mean. It's a heavy burden of responsibility and it will leave him open to people's anger. In some circumstances I am sure I too would rail against him acting in such a controlling way. But Clark is not acting like a cruel dictator here--he loves Chloe and will continue to love her, but his abilities also place him in a role of looking over/after her. That's not his fault but he does have to acknowledge the reality of that--which he has done here. For a while, that balance was flipped the other way with Chloe 'looking after' Clark and we saw how dangerous that was for her in just the last episode.

Sorry, I'm rambling, but I feel passionately about this!