Looks like a standard cookie-cutter survival kit. A med-evac helo will not be missed for long and when they are missed the cavalry will be out in force. Assuming an 406MHz ELT is part of the helo's equipment and is activated, they need water, blankets and signaling gear (mirrors, whistles). The pilots should both have personal survival gear in the form of PLB's, signal mirrors, flashlights, etc. Being a MED-evac helo, they should be heavy on First Aid and be able to access additional FA "stuff" from their passengers.

I do not understand food and a fishing kit; is that an FAA requirement or just something they have because "every" survival kit needs food and a fishing kit?

Something to consider would be some form of lighting (strobes/beacons) to designate an LZ for a responding (back-up) helo. If they have an emergency off-field landing (not necessarily an uncontrolled crash) and a second helo responds to pick up their passengers and continue, they should have some way of designating a safe LZ, so there is no time wasted.