I agree.
If SE would have worked on the serious content and released it what would be the result? We might enjoy it but once the changes happen and the current content doesn't fit the changes people will cry about how SE broke the game even more. Then if they didn't overhaul the game(so it would fit) people would complain how they aren't listening to us.
I think the current path is a lot more beneficial compared to the other. 70% of the Eorzea you know now is going to be changed completely so how can they rush that and put endgame on top of it.
People need to understand a few things and drill it into their head if it cannot penetrate.
1)The game has not been in development for 5 years.
2)The same dev team isn't working on it right now(All the top spots were replaced)
3)The first month in they were learning their team(as stated by Yoshi)
4)There was a disaster in Japan that delayed it another month
5)The most important: The game code is fucked which is why the "simple" changes turn out to be not so simple and we have to wait for things like a mailbox system.
They have been in what 5 months now(correct me if i'm wrong)? So they had a solid 3 months of development time working at 100%. Also with the code being as is and disasters hitting Japan I applaud SE for moving at the pace they have been. Would I love A LOT MOAR NAO!?!?! Of course but people need to stop crying over spilled milk and chill out.