I'm not sure who Yoshida is trying to get back at with this, but I don't think the vast majority of the player base needs to be caught in the cross-fire. I understand some of the people who are giving comments can be unfriendly, but taking it out on the gaming community in this way just isn't the best way to handle things.
Jokes aside, the grind is just too long, and it has proceeded to become longer because there are fewer and fewer people actually doing fates. Very few people actually have an animus weapon, and those that do are not particularly interested in having to redo the same long-winded process over again.
It might be best to simply replace the fate treadmill with a series of quests, a progress bar, or just greatly increase the drop chance. We will already have to spend 1500 mythology per book, so its not like you would be handing out ilvl 100 weapons for free.