The picture shows what someone pointing the gun at their own head would see. Whether a hand, head, camera or mirror is actually in front of the muzzle is irrelevant. The picture shows what someone with their head in the wrong place would see, thereby suggesting that juxtaposition to fools viewing the picture.
All judgement aside, though, every muzzle is always pointed SOMEWHERE.
Putting judgement in, don't suggest stupid things to others. Some are stupid enough to take a hint. And that picture IS suggestive.
Be safe. Always, all ways.