For potion u can use in fractals only,5000 Fractal relics seems little bit too much.We get it,you wanted to make higher number req. as humanly possible to keep people doing fractals,but by the time u get ONLY ONE potion,you can farm any of the legendary weapons 2 times over.
In fractals you have to be present at all times,no afk,no brb,that is if you are serious about your farm,while when comes to gold farm for legendary weapons,you can afk as much you want,without holding back rest of the group.
I would totally understand time invested requirement if you could use potion anywhere you want,but only for fractals,which one one plays for more than one hour a day anyway its heavily overtuned.
I have been doing fractals for a while now,but only recently i got ar up to 140+ and started doing it little bit seriously,and after all this time i decided to open all reward chests,trade in all potions,trade pristine relics just to realize i got only 1200 fractal relics,after countless hours of farming.I simply cant see myself farming for 13800 fractals relics more.
Just when i started to warm up,when i realized i am not getting kitten worth my time invested,i decided not to enter fractals ever again and sold all agony infusions.