Lootboxes would indeed not be ok for the reason that many countries did start to handle the gambling for real money problem.

Instead, why not sell directly the weapons and all armors pieces ? Since the pf is full 24/24 with forbidden by the TOS RMT savage runs sellings, wouldn't it be a good way to get rid of them that SE begins to legally sell the same thing way cheaper ? If getting your shiny savage weapon was for something like 9.90 euros in the mogstation, all the RMT for the same thing at x00 euros would disappear. With kinda the same reasoning as those who want to bring the equivalent of Wow tokens into FF14 to hurt all the RMT gold selling.