Tbf comment you replied to never said they were direct hires. Outsourced workers sitting around is possible. You seem to have customized their more general statement

Can confirm though, being acquainted with PR people in the field for >20 years; everything on TV is scripted these days.

Chatted with some of my PR friends coworkers over the years at Christmas parties and the like. They claimed stunts during MTV specials, other "candid" moments from the last 20-25 well known to pop culture were actually organized by a PR company they worked at (never that they worked on that project; such work was reserved for whatever PR rockstar PR firm hired)

But all this too could be PR sales pitch to impress; society is full of hearsay to titillate