Yes, that is definitely an exposed hairline. You could do that shape with a hair system, but it wouldn't look quite the same. It would be more regular than Chris Hemsworth's hairline. For example, Chris has a little thin patch or casual parting just to the right (in the photo) of his widow's peak. You couldn't really do that with a system. It could still look good though. I would choose a lace base and a glue attachment for a hairline like that.