It's only the scarf cut, the felling cut is made from the other side and isn't there yet, no danger.
I know a thing or two about big timber yesYou know your sheit!
I know a thing or two about big timber yes
From the looks of the saw (it's a Stihl Timber Boss) and the hairdo/mo on the guy in the flanno shirt that dates from around the mid 70s. There are very few redwoods that size cut down any more which is probably a good thing.