Sorry what I mean is that generally when your relic step is just straight tomestone, then this is something you will naturally accrue whilst doing roulettes, hunts or a number of other things to cap your weekly currency, so it isn't really changing anything for the vast majority of players that are already capping their currency anyway.
Comparatively speaking, once people have exhausted getting the Free Market achievements or the boss specific rewards then they aren't really likely to go back and do shared FATEs unless they are farming for that specific mount which is only really a handful of people.
This is why I mentioned about it transforming how people play, when it's tomestones you aren't really being asked to do something you're not already doing. I wasn't saying that FATEs are not part of the core gameplay loop, just that generally they require people to go out of their way from their usual daily routine of capping tomes.