Algus, Hunters did not actually do too well in Cataclysm. They rivaled DKs for the second and third class from the bottom in representation, were Sunwelled in RBGs, and suffer from Focus regeneration problems the whole expansion. And that was just the PvP problems.
Representation-wise you are correct. RBG-wise you are correct. In regard to quality of life with their resource, you are absolutely correct. Hunters had problems. None of those things made Hunters a bad class though. Badly designed, yes; underpowered, not really. In addition, the problems did not stop Thug Cleave from being the one of the best comps in the game in s11, and not just solely because of the presence of Rogue. They did not stop PHD from winning Blizzcon 2011 either, defying all odds. It didn't stop a frankly mediocre KFC from knocking EG out of one of the later Yaspresents tournaments simply because Hunters had the ability to CC 2 out of 3 targets on the team while training one.
Scatter-Monkey-Trap chains were the least reliable CC in the game.
If you had left Monkey Blind out of that I would have agreed with you. Unfortunately Monkey-Trap removed almost the entirety of the luck factor for landing a trap, and shifted the luck instead to the other team being able to eat the trap. 9 times out of 10 a Monkey-Trap would land, even against a team who had a Warrior intervene or the healer standing right on top of a Lock's portal.
all it took was a casting slow to hurt them
This was (from an outsider's perspective) the single biggest problem with the Hunter class in Cataclysm - being doubly affected by both cast-time slows and by melee slows. That was completely stupid and indefensible, and Blizzard really dropped the ball.
There were a few comps that served to keep us at the top of the barrel's bottom crust.
Again, I don't really agree with this assessment. Considering how much of the workload the Hunter was carrying, I don't think it was as much the comp propping you up as the capabilities of the class and the players behind the monitors. As Thug Cleave, all the Rogue had to do was turret damage and then Smoke Bomb on something, and maybe Blind to get a trinket if they wanted to. A Hunter had to off-CC to prevent peels or heals (if Spriest present) while managing big burst, all while playing the pet minigame to get freedoms and sacs going (juggling multiple pets per minute if a Rogue present).
Look at now: the class suddenly has mongo damage on a much more consistent basis (much of that because of how mongo of a spec BM is) and Hunters are one of the top classes in terms of representation (last I checked, it has been a while so that may have changed). The huge damage makes Hunters not NEED the frankly obscene instant CC they have in order to be successful.
As I recall, we tended to make many of the same points, albeit in roundabout and sometimes loud and "NO YOU'RE WRONG!" ways back in Cata. I'd rather not get too into this before I hit 90 (even though I'm doing it on my Warrior first since he's been my main for...oh almost 7 years now) but maybe in a few weeks or so, if I don't unsub, I'll be happy to get back into the forum stuff haha.