Yes. Yes. Yes.
I basically agree with most, if not all of the above listed problems and I have created another thread Delete Warlock Class where I do plan to keep posting and hopefully getting more and more Warlocks to voice their opinion on our class and its problems.
Not a big surprise that as 5/8M progress, once I updated my LFGuild board on wowprogress, I instantly received more than 50+ offers and some from 8/8M semi-hardcore guilds that just lack warlocks. Why is that?
Because everything else feels and performs better than us (this might not be objective opinion, but dont lie to yourself - warlock is no more than average). Many thanks of course to my current guild that I play with as I did get my CE with them, but if I was any other class I would most likely still be trying to get an invite to a guild whatsoever.