The Yeti and Sasquatch have mystical powers.
Remember the Shadow stories about the guy who had the power to cloud men’s minds and thereby become invisible?
These creatures are real, but they have power to cloud men’s cameras, so all their pictures are blurry.
UFOs have the same power.
Right. How is it, in a time when every human on the planet carries a camera, the only picture of the Loch Ness monster is that blurry photo from 1938? The same with that film of the Sasquatch.