Headlines were invented to get attention for a story, not to replace it. Otherwise, nobody would bother to write an article (or in this case conduct an interview) under the headline

The actual video has the MI6 guy bring up Israel's involvement as well. If these were actual people making assumptions off of headlines, they would never have found out

But no, I don't think that every single commenter is an actual person who just made an assumption, commented, and left without even pressing play on the video