If you look closely at the bottom of the concrete steps you can see a horizontal line drawn. It's probably the level to which the sidewalk cement will be poured to. That thing's going to be permanent.
I guess the Richards Street side is considered to be the "back side" of the building where few people will go(?). It's so odd they didn't have the steps inside the building and a discreet door at ground level.
Kingston Hotel guests who arrive by the Canada Line can squeeze by with their bags on what little sidewalk is left.