We anticipate that even with this update, third parties will continue

[LianaThorne]

The thing is, mounts are not a super big ticket item. Yes, there is the Lunar Whale at $42 as 8 people can ride it, Chocobo Carriage at $35.99 for 4 people, and 2 person mounts are $29.99, but most mounts are $24 with past event mounts at $12.
Of items still GIFTABLE: A story boost through Shadowbringers is $25. A Class boost to 80 is $25. The two newest outfits, Fat Cat Attire and Street Wear are both $22 a pop.
So, honestly, yes, there are SOME more expensive mounts, but most of them are less than stuff that is still giftable. This thought process in mind, there was no reason to lock mounts and minions down from being gifted to friends.

It doesn't matter if something is $12 or $42. That's still profit to them because none of it is being bought through their own money. Selling a $3 costume discounted isn't worth it but $12 for $6? Or $42 for $21? Yeah, it adds up.

And yeah it is reasonable when people will wait out that 72h period to continue to make money. All they would have done was make the process longer (similar to how the black market for housing is still alive even with a 30 day wait, you just pay half up front now and get added to the FC and after 30 days pay the rest and get leadership), not stop it entirely without putting a hold on gifting the valuable items. It literally would have solved nothing.