Did you ever raid in WoW or everquest? I dont recall tier 1 raids being so easy you could start them in greens without doing any hard modes. and clear the whole thing on the first try.
I was using greens and some blues up until BWL at which point I started getting all the epics nobody else needed because they were getting T2.
Both Onyxia and Molten Core were ridiculously easy... we (the guild I was in back then) were just horrible at raiding, which is why it seemed difficult (we also had some 30 odd people who were purely casual gamers in every raid just trying to keep up).
So this is pretty damn good from my perspective. Its not insanely difficult, but its not so easy everyone is full clearing already.