The 7.41 Relics Not Having Customizable Stats is Disappointing
I haven't really seen it talked about much but relics released in 7.41 do not have customizable substats breaking the pattern they have had in place since Stormblood. I understand that it's likely that a vast majority of players don't really care about substats and this probably affects very few but at least for myself it's one of the things I look forward to the most each expac.
Customizable relics are fun for making unique builds and also messing with IL sync in certain duties. Even outside of using it for optimization it's really fun for making things like Skill Speed and Spell Speed builds.
Though putting that to the side, not having customizable substats did actually hurt one piece of content, Occult Crescent. Right now the best builds in OC all run Arcanaut +2 and the Occult Accessories. The problem with those pieces is they have 0 skill speed which means certain jobs, like SAM and MNK, are unable to reach optimal skill speed values. It's just incredibly disappointing.