I notice in the same email there is a policy for future bookings too.
New Reservations. Any reservation you make – even those described as “non-cancellable” (“Advanced Purchase”) – that are booked between today and April 30, 2020 for any future arrival date, can be changed or cancelled at no charge up to 24 hours before your scheduled arrival
If I have understood this right, I can go ahead and make bookings for the next 12 months using the non cancellable rate, and will be able to cancel for any reason.