Read the fine print. Another "good for guests, dangle carrots for hosts" new feature. Hosts won't be paid anything, Airbnb will still retain the service fee from guests, offering them a travel credit in lieu of a refund. It's an attempt to get hosts with Strict policies to change to moderate or flexible. Like the coersion tactics to use IB.
The only part I think is good is the filter for cancellation policies. Might eliminate guests booking a strict place and then screaming about not getting a full refund if they cancel and harrasing the hosts. I think hardly any guests, except those who are veteran Airbnbers, ever bother to read the terms of the cancellation policies, let alone understand them.