Yes. Ring flashes are not limited to macro photography. They’re also used for portraits and some fashion work because they create a distinctive look: very even, near-axis light, minimal shadows, and circular catchlights.

That said, they’re a stylistic tool, not a universal replacement for off-camera flash. Off-camera lighting usually gives more modeling and control, while a ring flash gives a flatter, more direct look.

For runway or event coverage, using a ring flash can be realistic when mobility matters and the photographer can’t set up stands or booms without getting in the way. In that context, an on-camera ring light/flash may be used for convenience or subtle fill. But a small portable ring flash is generally not the typical main light for runway photography.

So the TV depiction is plausible, but whether it was the best tool depends on the intended look and the shooting conditions. It could be a real stylistic/professional choice, or it could simply have been used on screen because it looks visually distinctive.