And, probably, a greater need to do so now we have Simply More. There will be folk who, previously, took one of the "perks" other than excursions but will now book excursions because the excursion credit is included in the fare. It puts additional demand on the supply.
I presume, perhaps wrongly, that O will have ramped up the number of places available, knowing there will be increased demand. Does anyone have a sense how much ramping up has actually gone on?