I disagree, it used to say the option was 1K points if closed during the weekend. Not that language has changed.
Interesting I am looking at a hotel now that is selling concierge floor rooms during the weekend, but adds this:
Please Note – Concierge Lounge closed 12noon Fri to 5:30pm Sun. Platinum/Gold Elite guests offered 1000 points for each closed day.
It does NOT address what happens if the lounge is closed for HOLIDAY or b/c they want to do it.