Is Havoc DH really such a faceroll spec to play?

There's a popular meme on this forum that Havoc is an extremely easy spec to play, it just mashes one button, etc. I was wondering if there's merit to this meme, because so far in my personal experience it hasn't been noticeably easier than other DPS specs I play.

For the record, I have a 900 ilvl DH, 905 Mage, and 890 Elemental Shaman. I've done full clears of H NH, 3/10 M NH, and 15 M+ clears on all of them. It's not a huge sample size admittedly, and I may have just chosen all the easiest specs in the game, so please let me know!

In my experiences, Havoc is just as complex to play optimally as Fire / Arcane Mage and most Elemental Shaman talent setups (not Icefury). I'd say Fire Mage is the easiest to play out of all of them, actually. And yes, Havoc does smash Chaos Blades a ton, but all these specs have a filler spell they spam a lot.

I would say Frost Mage and Icefury build for Ele Sham are the hardest because frost mage is extremely punishing if you screw up and Icefury just has a lot of buttons you need to juggle in the correct order and keep things up correctly.

If it's one thing Havoc truly has easy in terms of execution, it's being a melee spec. All abilities except for Eye Beam are instant cast, so movement doesn't interrupt abilities you were preparing and you never have to worry about a target dying before your ability goes off. But that's true of all melee specs.

So what's up? Did I just pick the three easiest classes to play? Or am I wrong in my assessment of the specs I play? What's the deal with Havoc?