I think overall Midas has good difficulty. A6S might still be a tad hard for being the second fight, but with how lax the DPS check is I think it's fine. I have cleared it 30 seconds before enrage with 5 deaths in a Gilgamesh non-partial static pug. No one complains about 5, and 7 is still a bit easier than 6. For sure. So really only 8 could use a potential difficulty change, but this time upgraded lore is still weaker so has a nice carrot, and even with the mechanical complexity it is cheesable and more lenient on lower dps and healing. So at least it's better than A4S was.