Just because the owner has a legal right to keep tabs on people, and that doing so doesn't infringe on constitutionally protected rights, doesn't mean privacy isn't being violated or that (s)he is above criticism.

You do not get to enter a building that someone else owns while keeping that fact secret from the building owner. That's a crime.

Nobody is saying that it should be "kept a secret". Only that it shouldn't be on record, especially electronically. You know, like people do everywhere buildings have regular keys.