Lul, the 6.0 opener. You really absolutely know nothing and you'd be a really bad Summoner not because the job is bad but because you don't know any better.<
So... Let's see, choiuces of openers. Might need to skip the first Ruin III depending on the fight? Looks like some fort of thinking. Not much but still.
1 > 2+Buff > 1+Pot > 1 > 1+3+4 > 1+5+6 > 1+6 > 1 > 7 > 8+4 > 8+4 > 8+4 > 8+4 > 9+Swift > 4 > 8 > 8 > 8 > 8
Slightly different stuff on the different opener but the amount of unique buttons won't change. The fact you don't even know Searing Light can be used inside of Bahamut/Phoenix shows you have no knowledge and your opinion is invalid.
Let me check Dragoon, a melee DPS. Clearly a job that requires more brain.
1+Pot > 2+Buff1+Buff2 > 3+Buff3 > 4+6+7 > 5+8 > 1+9 > 2+7+10 > 3+11 > 5+11 > 4 > 1+12
If we take the oGCDs aside. The core mental gymnastic of SMN vs DRG is basically:
DRG: 1-2-3-4-5-1-6-7-5-4 (Repeat)
SMN: 1-2-1-1-1-1-1-1-5-3-3-3-3-6-3-3-3-3-7-3-3-4-4+1+8
SMN --> You can swap in any order for optimization of the fight between 5-6-7 which are your legos. You can swap during Ifrit to do 3-3-4-4 or 4-4-3-3 or 3-4-4-3. This is especially true in a fight like the door boss of P8S.
So let's recap.
Dragoon has more buttons to press because it has more oGCDs than Summoner but Summoner GCDs actually outweights Dragoon. You do really just press the same buttons most the time but Dragoon looks awfully braindead to me.
You actually posted an incorrect Summoner opener.
You don't play the job you accuse of being too simple.
You hide your main for some reason that are beyond my understanding.
Dragoon provide more support than Summoner and is equally simple.
Simplicity of a job is very biased and based on the person's playstyle (I can't play bard or dancer despite how simple they are personally)
I can spend 15 minutes to take off the rust on Dragoon and play it a decent level and master it while raiding. Just like I did with SMN when I swapped this tier because I hadn't played it for 6 months. THis is all muscle memory. Once you've practice enough, you don't even think if you need to move behind for your Chaotic Spring or Wheeling Trust; you're already behind and if you absolutely can't be behind, you'll be using a TN stack.