FFXIV is becoming a grind fest with little enjoyment.

[Alahra]

This type of system is really dated which is why it is in FFXI.

FFXIV could implement something similar though (and it's actually what I thought Hunts were going to be originally), without the need for a chart. Imagine an item that works sort of like treasure maps—let's say there are 12 of them, and for giggles, let's say there are 12, one for each of the Zodiac Braves (I know they used them already, but this is just for illustration).

You can dispense with the need for tiers of NMs (that FFXI has in Escha but also had in Abyssea) and just skip straight to the cool ones, or do something simple where each of the 12 "Zodiac Stones" (that are used to pop the NMs), can all drop from any treasure map, so there's no specific need to go look up a chart—you just go to the MB and buy the Cancer stone to pop Cancer, and that's your NM.

They don't have to lift systems entirely from FFXI for them to create similar content here (indeed, Diadem—for all its faults—is, in a lot of ways, superficially similar to Dynamis in FFXI or dungeons in hack and slash titles like Diablo that have randomly-generated loot).