It gets more interesting at 86 but that's because we get a third button. Most people complained about the previous filler Ruin phase in the ShB rotation, but currently that's all SMN is. We're using nothing but ruin or elemental ruin the whole time. Most of them are instant now but we lost the weaves that needed use to have instant casts in the first place.
So at 86 Ifrit gains the gap closer combo, 2 more gcds that don't use the existing 2 charges. Garuda gets the GCD slipstream, shadowflare with a big initial hit and doesn't consume a charge. Titan gets a chaser weave that actually feels interesting if only because you press it 4 whole times for the infusion and gives you something to weave with your instant casts. The 3 new GCDs in ifrit and garuda also happen to fill in the gap after all 3 infusions are done so that you only have 1-2 GCDs to fill in before Bahamut or Phoenix come back up, so you can cast a ruin 3, burn your ruin 4 and pop searing light. If you have enough sps searing will drift if you don't add in more filler ruins and I'm not sure what's better. I'll leave that to the math grinders.
Overall once a minute you summon 4 times, use Energy drain once, get 2 festers and otherwise cast ruin or infused ruin. or outburst and infused outburst. It's extremely simple and easy so anybody who doesn't main SMN but just wants to try it sometimes will probably love the shit out of it. They don't have to think about what to do or try too hard to learn and get rewarded for it, but anybody who enjoyed old versions of SMN will get bored very quickly and probably feel unengaged by it. I've already cleared the current extremes and the only active choice I've had to make is whether I do ifrit or Garuda first and the boss mechanics decide that for me and I've figured that out within 3 pulls.
