Going to the wreckage is a reasonable idea. There will be an ELT in there which is what a rescue crew will come looking for. Plus it's easier to spot from the air than a lone person. And maybe something useful survived the crash.
Yeah but once you make it to the plane the best bet would be staying in that area after activating the ELT, perhaps only making slight excursions in search of water or food.
The plane even if it didn't have an ELT would be a great beacon for rescuers that works come looking after he didn't arrive back on time.
That said, it's an incredibly fake stunt video.