People add extra words when they want things to sound more important than they really are. "Boarding process". Sounds important. It isn't.
It's just a bunch of people getting on an airplane. People like to sound important. Weathermen on Television talk about shower activity. Sounds more important than showers. I even heard one guy on CNN talk about a rain event. I swear to God. He said, "Louisiana's expecting a rain event". I said, "holy shit I hope I can get tickets to that!"