This is in 3 parts due to the 1000-character limit on a single post.
I'm sure nobody actually cares that I've stopped giving SE money, but the reasons are relevant to this thread.
The one unique thing about FFXIV ARR, that I've never seen in my very long MMORPG career (uninterrupted since the start of Ultima Online) is that you can be all classes, crafting and gathering and combat, on one character. This is what attracted me to the game despite some fairly bad experiences with FFXI and the horrible reviews of the original FFXIV. And it was indeed fun! But with Desynthesis, they have broken the one unique feature that made them special - now you have one system you can't fully explore on one character. Leveling up a character through the main questline is really painful, so I don't expect very many will try to do all possible Desynthesis classes on alts... even if there were a way to send materials and other items to your own alts.
(cont.)