That process does not establish the passenger’s identity. The account describes a person in Mexico who looks like the performer, and the online reaction is built around that likeness. It supplies no independent identification of the passenger and no basis for treating the image as proof of a different explanation. The distinction is small in wording but substantial in meaning: looking like a famous person and being that person are separate claims.
The joking responses also belong to a familiar pattern of celebrity discussion. A recognizable face can prompt playful speculation, references to old rumors, or expressions of nostalgia. Those remarks may be intended as humor rather than literal assertions. Once a photograph moves beyond its original audience, however, a joke can lose the tone that made it recognizable. A caption may be repeated without the context that separated an amusing resemblance from a serious claim.