To be entirely blunt, if you're "shaking like a leaf" over Titania, then you simply haven't practiced whatsoever prior to reaching her. She introduces nothing the game hasn't thrown at you already in spades. The fact you're painting her as some monumental challenge screams you either don't know mechanic well enough or don't play your job well. Now either is entirely fine... provided you're willing to practice and get better. Considering a lot of players aren't, well, my statement stands. When I see Black Mages who don't press Fire 1 in their rotation, I'm going to say they aren't putting in much effort to learn considering that's the base rotation from ARR levels.
Nevertheless, nobody is asking for the MSQ content to be some insurmountable wall. A good chunk of people would like things like dungeons to be more than simply wall pull a bunch of wet noodles and sleep to victory. When dungeons don't even need a healer it speaks volumes to how grossly undertuned they are.
As for this "considerable amount of content between MSQ and Savage." Where? A good chunk of that content has continuously been watered down because god forbid there's content people can't do. Sephirot Unreal will be coming out in three weeks time and he will completely obliterate every EX trial that existed over the last three years that isn't named Warrior of Light. The difference from his era and now is staggering. Hydaelyn and Zodiark were so woefully undertuned, they were cleared, on release, without a healer. Endsinger is a 12 minute fight an average PF group will kill in 9. She has a single "gotcha" mechanic that will one-shot. Otherwise, she does practically nothing. One person slaps on the Danger Dorito and leads everyone to victory. Even Savage isn't immune to this as P1S is the easiest first entry fight we've had since Alte Roite, who was notoriously meme'd on when he was killed in a single pull.