Why does it say we, when there is one person behind it?

Because Channel Zero is a channel and not a consulting room. The we means the channel, the figure and the person behind them, and it also means that we hold ourselves to a standard larger than how we happen to feel on the day.

The person who comes when you call is Nils-Peter Hey. That is why this part speaks about him in the third person rather than in the plural. Where it is about one person, anything else would be posturing.