[Flyndaran]

That example was clueless and suicidally stupid in addition to xenophilia for comedic effect.
It doesn't make you run toward someone shooting or aggressively pointing a weapon at you even if alien.
An alien pointing an unidentifiable object that most of us would assume but have no direct evidence is a weapon is what may cause a xenophile to approach.

Same with one shouting an incomprehensible language while gesticulating wildly with large clawed appendages. We would default to how aggressive such actions would seem in most human cultures, but a xenophile would consider other possibilities.