Did you mean “the 3/15 cutoff” ?
The letter you posted before specifically said for reservations booked before March 15 with check-in after May 31, but this one is for May 29. This is a quote from your previous post.
Basically, this specific reservation falls outside of reservations that letter was referring to. However, the point is still somewhat valid. If they extend the EC policy and the host already canceled, then the host can’t complain about not getting money from their strict cancellation policy.