Are you aware that Fantasy Grounds comes with his tokens as token modules for free? Creatures, Characters and Monsters - in top/down transparent background and pog format.
As Zeus says, it's not FG's call as to whether to add more non-WotC sourced/approved artwork/tokens into the WotC modules. But you, as a user in your own campaign, can use the free Raymond tokens in your WotC modules - just a quick drag/drop to change a letter token to one of Raymond's tokens in an NPC or encounter record, before you add the NPC/encounter to the combat tracker, and off you go.