They've solved the problem for lone players. They can do any solo duty on very easy, and they can do any dungeon with Duty Support NOCs that will take as long as they need.
Even if 24 mans and 8 mans were returned to their original difficulties by fixing ilvl and action potencies, those players would be able to be carried through either AFK or on the ground, because that's how the game was originally tuned anyways.
Think of how many bosses used to permanently remove players from the field if they fell off and how healers didn't always have swift rez unless they went and learned it. Yet those players routinely succeeded in raids and trials with dead and ejected from the arena players.
They weren't somehow better than new players or mediocre ones today, the game is just well designed to be approachable and beatable.
Currently the game is just fine for players that are more interested in the story and not interested in the gameplay, but that's shame because it used to deliver BOTH. It's asking a lot for a player coming from most other games, and especially from other MMOs as most do not have such a heavy story focus as this one, to take people's words for it that the combat does get more interesting when you've spent 100 hours walking cutscene to cutscene and you just beat unlocked and cleared ST in 11 minutes, spending half that time waiting moving between bosses and trash.
Not to mention, they hardly even have the opportunity to be prepared for later difficulty as the MSQ exists today. There's relatively less time spent in combat on the way to max level just from exp sources alone, so of course they're gonna have a worse time with the combat that's still required, either because they're less ready it for it or because it's so fleeting for those that enjoy it.
The complaints of being bored are no more childish than you telling them to do something else. Do you not trust the people you're speaking with to consciously decide to take their time to post here because they think it matters? NOBODY has to be here, neither folks that are dissatisfied with how unengaging most of the game has become or the ones that hypothetically can't beat LotA with a decade of guides and knowledge on the Internet and in the minds of the community that 23 players will be drawn from, ready to support them through it.