This thread is really full of win.
and while I agree that that doesn't make ICC or other raid instances hugely difficult, i do say this with only normal modes in mind
And yeah, i agree that there is just tons more information out there than there was before, all the theorycrafting, all the bosskillers.com, and add-ons have made the game a ton easier.
However, in terms of strats the fights are a lot more complicated. There is tons more to pay attention to.
The game has also changed hugely from previous expansions too. Circle of healing? Beacon?
Wild Growth and all the raid healing, etc... More specs are viable to raid with too, and all of these are good things.
But in terms of strats, etc... just look at Naxx, and while old Naxx was much more finely tuned and required perfect execution from about 20 of the 40 people if I'm not mistaken, I wouldn't call them difficult.
Farming certain gear and resistances are also not a good way of determining skill either. they really are just cheesy cockblocks.
Also add that whether people like the way raids are today, it most likely won't change too much in the future. More guilds than ever are raiding, 27000ish in ICC atm. That's a huge win for Blizzard