While I don't put too much stock in trying to accurately remember much of anything related to FFXIV anymore, I'm pretty sure that ARR and (I assume you mean) Heavensward relic grinds were quite a bit more robust than this. I suppose not (if you're saying it's comparable), but, if that's the case, I think it would be wise to consider the overall situation for the state of the game during such times when those complaints, if they were as such, happened.
Currently, the main complaint (on the forum) is that there isn't enough to do. Ignoring the 3 achievement hunters, that one chick who thinks they're "telling it like it is" (but apparently doesn't understand the internet), and gatherer/crafters that do busy work before returning to their oh-so-busy life and are thankful for having so little to do to feel like they're "keeping up" in a game where, according to all of these people, you're not supposed to feel like you need to keep up with anyone, it would make sense why the complaints surrounding the relic would be about the lack of time/effort required to complete it.
During ARR and Heavensward, if people were complaining about having too much to do or tying the grinds to FATEs, etc., part of me thinks that it's because, at the time, it probably felt like there was more than enough to do and so, I would imagine, they probably wanted to reduce the amount of tedious effort required to complete the various steps. But their grinds involved many different steps with many different things to do, so, while it was tedious, it was at least varied and each step could be divided into smaller, more digestable grinds.
They streamlined it so much with the tomestones, this time, however, that those of us who only really intend to grind for 1 weapon (because, despite not being the 3 achievement hunters, that one chick who thinks they're "telling it like it is," and gatherer/crafters that are too busy to keep up with the Joneses otherwise, we have a life and interest outside of this game or are just not so obsessed with this one to want to do absolutely every little thing and lord that over everyone else) can technically complete all we want to do in very little time, adding to the feeling that there is little substance left for us.