I never said you were incorrect, because what you said is true common knowledge (not to be confused with common sense). This is just one of those things that people generally learn very early on in their FFXI lives. I'm sorry for those who may have been underprivileged from the beginning and without knowledge of the resources where you can find basic information like this.
As for this subject, I'm also glad to know they will be further expanding our options for storage. My guess is it will focus primarily on items used for quests, which I'm sure will help a lot of people. For me, I'd just like a larger gobbiebag because I have too much gear for each job to maintain a steady inventory, and often finding myself leaving some stuff behind. 80 spaces just aren't enough! :P And before you go "but you can access your sack/satchel outside of MH, why don't you keep your stuff there?" Well my answer is simple, and I'll break it down in two parts: 1) Sometimes (not too often) situations can change rapidly and scrounging around for missing pieces would be a waste of time. 2) I'm lazy.