The mission of the Multinational Force was pretty much over anyway. The truck bombing attacks on the French and US contingents occurred in October & the trajectory of internal Lebanese politics made the decision to withdraw likely by spring. The February withdrawal was not much earlier.
The Hezbollah organization existed previously, & its leaders refused to take credit for the attacks, preferring to gain support through other methods. In the longer term little changes in the Israeli & Syrian relationships with the US. Within the US government there was little attention to the idea either nation was connected to the attacks.