The mere concept of """""relic weapons""""" doesn't actually exist in FFXIV, simply because the vertical progression of the weapons/gear, even with the oh so glorified extreme/ultimate weapons, they will become garbage/simple glamour in less than 2 months in terms of stats...

Way different compared with real relic weapons on Final Fantasy XI, they took months or even a years of pure grind and wait till it was your turn to have one, but it was worth it, they were the really ultimate weapons for the years to come, looks and stats wise. But that worked because they kept the level of the gear synced with you actual level. Even today, the gap between you and the ilvl of the gear is only 19!! While, at the moment, in FFXIV the gap is 700 levels...

It works in a way because people nowadays want immediate gratification and so so aesthetics, so is what SE gives to the majority of people, glowy weapons with somewhat nice aesthetics (time to time), and that's pretty much it. Stats? Nah, they will become trash in 2 months or less.

But hey!, lots of people prefer to have a more or less pretty weapon to show off in no time rather than a super hard grind that may take you years. That is the FFXIV formula and it works, so they pretty much will never change it.