Yeah, that guy is cool 
But I don’t think it’s the same module. The one in the video is just a couple of diodes, and the Meepo one has actual FETs and + & - connected. You can see the part number in the first pic in this thread (HY1908 is a 80V 90A N-channel MOSFET). I believe this module in the hurricane senses, if there is a charger voltage on the chargeport present and then switches on the FETs.
This way it doesn’t spark when plugging in a charger that isn’t connected to the wall.
edit*
As to why they fail: These are cheap FETs that clearly don’t survive too many switching operations. They work basically the same as the old, non pre-charge antispark switches.
The module even has a fuse, which (I guess) is a slow blow fuse. So it won’t protect against the initial current spike, just too high charging current.