While it makes for a cutesy line, the analogy is flawed.

I wouldn't store my belongings in a cabinet in someone's office. I wouldn't ask a receptionist (or a company's safety officer) for a blanket at someone's office. I wouldn't accept someone trying to sell me alcohol, cigarettes, perfume, and earbuds in someone's office.

Football coaches don't tell players "Excuse me, I know you're actively training, but this is my workplace. Would you sweat like that in someone's office? Thanks."

Doctors don't tell female patients "Excuse me, I know you're giving birth right now, but this is my workplace. Would you scream and drip afterbirth like that in someone's office? Thanks."

No, the main cabin on a long-haul flight is not the pilot's "office". Admit it or not, it's more like a bizarrely-catered open-bay hostel.