Pre-release complaints about Stormblood turned out to be very accurate, and what you're missing is that more than half the time we will likely be pressing one button. Think of it like this: running Sastasha as a Scholar is boring because it almost entirely consists of casting Ruin. Everything from level 1 to 70 is going to be like that, and it's unlikely Shadowbringers will be any different without making it unclearable for a lot of less skilled people or new healers.