It's worth noting that the "Revised reference cards" are now optional, as in you can choose to use them to make your game easier (1 or 5 investigators) or harder (4, 7 or 8 investigators). Since there is still only one card per player number, there's no real need to make more than one check box as easier vs harder can can be inferred from then number of investigators used.
Also worth noting that FFG hasn't "officially" announced that the FAQ has been updated, so until they do so there's no guarantee that things won't change again.