I was actually in the wrong area at first. The area you see the first sign should have an arrow pointing to the entrance. Being that it's blocking some stairs, gives the false impression that is the entrance and it's closed.

Entrance is actually some stairs adjacent to Starbucks. And the SkyClub is open. Very few passengers here right now. Good selection of snacks, sandwiches, fruit, yogurt, salad, water, juice, soda, and a bar.