You should be able to reattach it. The vent/hoses serve to ventilate bilge area which is a safety mechanism to prevent gas fumes build up should there ever be a leak (I had one in my 2020 Caracal when fuel pump slightly loosened up). You will note vents point in opposite directions. Theory is to provide a cross flow of air through bilge area to push out and fumes that could cause a fire on board. All boats with enclosed bilge areas that don’t have electric blowers have them. I know it’s tough to work in the Classic bilge area (I had a 2007 up until last spring) but if you can you should repair it. Removing the chrome vent may make it easier to reach. Good luck.