Sorry, but I won't bring "the majority" argument because it's stupid in this case (duh, I mean, that's what you bringing that up was all about).
However I will bring the "design" argument.
This game was made with the casual, low-skill player in mind. Simply speaking, it is an MMO that strives to bring a game with an enticing story that anyone can follow on their spare time without putting much effort. This is how it was from the beginning and changing that would be betraying their customers.
That means that, yes, the opinion of the players that want easy main story content IS more important than yours because THEY are the primary target audience. You are the secondary, the more hardcore people, for which there are the more hardcore/skilled optional things like extreme, savage and ultimate.
Now before someone says "I'm just bad and I want the content to be easy so I can snooze through it.". I'm good enough to have solo-healed Titan (Hard) when I was level 50 in Heavensward all the way from first landslide to the end, good enough to trio Ravana (Hard) on a Red Mage with a tank and another Red Mage that was constantly out of mana (probably didn't have Lucid Dreaming) from about 20% to zero, good enough to solo Chimera in Cutter's Cry from 80% to zero on slightly undergeared Bard and to heal and keep reviving healer and DPS while keeping the tank healed in Burn on the dragon throughout the fight while on Red Mage throughout second half of the fight.
I don't think I'm good enough for proper extreme content or savage so I don't do it (and my laptop and sometimes PING sucks, so there's that).
And I don't put the effort on the side to get better because in most Duty Finder parties I lose focus way too easily due to bad players and my inability to stay focused through people single-target attacking a pack of mobs, dying to simple AoE's time and again or similar. I can't get a static for various reasons either.
So no. I'd like it if the game WAS more challenging. I'd want it to have challenging solo content where I could get good with my class without having to roll the dice for the duty finder. But this game never was that and as such it should NOT become that. As much as I hate getting a person in the duty finder that still single-target-kills enemies in lvl70 dungeon, runs from a stack-up marker and such...too bad. I hope that the next Final Fantasy MMO will be geared towards the people that actually want to learn as they go. This one is lost cause in that.