You’re right: I got a message back saying that it must be due to the rooms being booked until June 2021. My frustration is understood blah blah blah.
Remembering the famous phrase, Hilton management are run by fools or the hotel has its own special opt out that the rest of the world can only dream about. When I next have a meeting with a property owner, I will remind them it’s perfectly fine to block all your standard rooms! Any sales manager will be licking his lips at the thought to finally get rid of HHonors redemptions a la Curio Barcelona.