I've been poly with my wife for over 16 years. She has a long-term boyfriend of over 4 years (who is also a close friend of mine), and I've had several long term relationships. We have no plans to get divorced.
Don't confuse "poly" with just "open" because polyamory is supposed to be about long-term romantic love. Paige getting railed by other people on camera is just an open relationship. "Swinging" and such fall into that category. Unless she's dating them, going out to dinner, spending vacations together, meeting families, etc., then she's not poly.
We have no idea what her relationship with her husband is like. Personally, I love being able to outsource certain things my wife is into. I wouldn't be that keen about fucking on camera either so he may just be content to let her do her thing. It is her job, after all.