Getting to level 50 on all eight crafting jobs IS a massive time sink, and the Ixal quests with their pitiful amount of experience that basically requires you to burn up all your daily beast tribe allowances that the Moogles/Namazu do in three quests is pretty bad. And for those who talk about crafting kits.... your still looking at millions of Gil to get all eight jobs just to level 50. That's not even mentioning the gathering jobs which fisher is still pretty terrible to level below level 60.
Also I'd say that your argument is a false equivalency. Triple Triad has no bearing on the rest of game play except to play more triple triad, same with the arguments about dyes and mounts. Crafting and gathering, on the other hand, tie directly back into battle jobs as the ability to create new weapons, armor, potions, and raid food. Being able to just catch up won't take away anything from people who already did it years ago. Even the jump potions now don't take you all the way to the end game, and jump potions for crafting/gathering shouldn't get you directly to level 70 either. Just far enough along that it's not something that would take months upon months if not longer just to be caught up with everyone else.