Hm I suppose that's true, actually.
Actually I guess this fight might be more about can base Kurou beat Laharl who isn't really trying, and if so, how easily.
Although I know there's a fight in the plot (at least once) where Laharl gets pissed at someone just for talking about peace and love and etc. He doesn't go galaxy busting because it's not necessary, but I imagine if they kept talking during the fight and were hard to kill Laharl would get pissed and nuke them.
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No problem!
This is a cute and pop genocide of love!