A Thought Occurs:
The Aburame are very much attached to their symbiotic, quasi-sapient insectoid partners. If we blow up a few in the process of getting rid of the bridge, we may need to consider what would be just and adequate compensation. Their bugs are like the Inuzuka's canines. We might want to reconsider any plan that has us asking the Aburame to send their bugs on a suicide mission. Remember, their bugs are more like Ender's Game Formics --along with some sort of mental/command link to their hives --rather than just a well-trained ant colony.
Mari made peace with the Inuzuka by honoring the death of their symbiotic, quasi-sapient partners. Probably not the best idea to ask the Aburame to willingly kill of their partners. As rational as the Aburame clan might be, it'd still be a very, very dickish thing to do that would likely serve to taint our clan's reputation among the established ninja clans.
And while this miiiight be able to be handwaved under "Mari can handle it," we're trying to give our resident PR rep some much needed R&R, yeah? To keep her relatively sane and level headed? To help her stitch herself back together?