You have no way of knowing this. If you think developers dont tweak their economies and drop rates to encourage microtransaction purchases then you're sadly mistaken.
They hire mental health professionals to help them perfect the economy for maximum exploitation of gambling addiction.
Shows how little you know, since most games have it tacked on at the end, they aren't designed around it.
Ask people who actually played previous AC games if they ever felt "encouraged" to buy the MTs.