Agreed, tokens are the problem here. They are the root of all evil.
That said, I haven't seen them design the game to encourage people to sell tokens; boosting for gold has always been in the game. If they were to (for example) sell XP potions or loot coins for gold, that would be an example of that. If you needed tons of consumables to raid, with some expensive components coming from vendors, that would be another example. If normal gameplay wasn't gold-positive, if they didn't give out thousands in daily callings, etc, I would buy that. So I don't think that's happening at this point.