For the many parts of your question. Yoshida already mentioned those answers before in his numerous weekly letter, so before you write your own letter, you should probably read them first as a manner.
As for coil weekly lock. I don't know. I think there is a pro and con. By locking it weekly, it is less boring that way, if you have item-lock instead, it may bring trouble that you gonna need to repeat the whole thing again and again until everybody in your static get the loot they want. This could make your static repeat the content from 2-10 times until stuffs drop for everybody, which could be troublesome task. Another thing is probably that they want people to not getting carried up I guess. The ideal method in End-game during FF14 1.0 is that you could make a party of 6 pro to cover 2 newbies and win the fight. Those newbies doesn't need to learn from the start and thus, only take 1 day to win, while the people who carry them spent many weeks to learn. As I said that this isn't necessary a bad thing, but it could be annoying for those who are semi-forced to help other by their FC rule. I just learned this later from old people I knew that they feel like to have 2.0 system of lock-out rather than the old system, because they want people to learn the content with them together from fresh until pro. He think that it is more fair this way comparing to 1.0 where most of LS members refuse to play new content and only wait for carried up.
