As a helicopter mechanic, this may not look like a lot, but I can 100% guarantee that the entire helicopter is a write off with that dammage. You would have to rip apart the entire helicopter and put it back together with a bunch of brand new parts for it to be safe again. This at the very least is a total refit requirement. Or some Russian pilots can go die after they did not realize one of those balls embeded itself in the transmission, either works.
I don't know if I'm blind, but I'm not seeing too many holes?
Back during ww1 or ww2 they figured out that the planes that came home with many holes in them, didn't take catastrophic damage and instead reinforced where there weren't holes.
So it's hard to know if these holes are catastrophic or not
It was WW2. WWI planes did not get armour. They were made typically of wood and canvas and used engines with the same output as a moped.
Also, the example you provide is for planes that were hit in mid flight and lived to RTB for examination. This helicopter was hit on the ground and abandoned. Assuming any of the holes aren't catastrophic would be a dire mistake.
The survival bias diagram you usually see for this is not necessarily for a single plane but for a number of them and aggregated into the diagram you’re familiar with.