Greg,
You make some good points about progress in raiding, and you said some things that us hardcore raiders liked hearing. There is however one thing, one overarching concept in your post that you do not seem to understand. We don't like, nay despise, artificial stunting of raid progress. Whether the impeding factor is a gate, a wing that isn't open yet, or content that isn't released, it pisses us off. We realize that if you just had all the raids ready at the beginning of the expansion and released them all at once, the hardcore raiders would finish them all in about two months and everyone else would feel stupid for being so far behind. So make content harder. Make it so you can't do hard modes until you have nearly every drop from normal. Make it so if we stepped into firelands without heroic gear we get one shot. We would rather be given the freedom to fail than be artificially restrained. Now with firelands it is an issue where you haven't finished designing the dungeons yet. Stuff doesn't work yet, we get that, we've seen the bosses you RELEASE. What would make everyone happy is if you slightly delayed the first patch of the cycle until it was ready, so there was a good content buffer built up in the beginning. While we work through that buffer you would have ample time to design the next stage and everyone would be happy.
So what does it come down to. It comes down to this: you aren't ready to release more content. You have trouble taking responsibility for your own actions so you say that we aren't ready for new content. You generalize hardcore raiders and say that most of them want to take a break. How do you know this? Did you ask us? You certainly haven't asked my guild or any of the guilds I associate with, many of whom are sick of farming Sinestra every week. So please, refrain from informing us of what we think or feel. We are more than capable of figuring that out ourselves, even while we trivialize your encounters. If we are forbidden from saying that Blues don't play the game in a meaningful capacity, then you are forbidden from telling us whether we are ready or not for new content.
Your job is to design content, our job is to beat that content. Just because we're better at our job and can knock it down faster than you can pump it out doesn't mean you get to come out accusing us of things.