I worked in the past extensively in Canada's arctic with a 500.
The pilot I worked with had bags of 500 arctic time.
we encountered icing conditions quite often during our work.
because of his experience it was manageable for our operation moving drills or fuel drums.
Not withstanding his experience was only a factor in the big picture. The aircraft spoke to him in some unique way and he knew when it was time to shut down and take a break and clear the ice. Some magical torque number he used as a reference.
Either way, he was comfortable the way he operated and we never had any serious consequences. Not that he didn't have a few close calls as he built that experience, I'm sure his personal library had some stories to tell.
This guy however....he will be a statistic one day. mark my words. I've seen other videos of him and right from the get go I marked him as someone to watch because he's going to make it to the TSB file at some point if he continues.