I'm bit torn on the difficulty of Normal content, while I personally would love to see it being bit harder, I can see a lot of other players already struggling with some of it. For example: last boss of 81 dungeon, EW trials, 90 dungeon and most of the Pandemonium Raid - I've seen decent amount of people dying over and over, though they often end up getting dragged through them unless too many of them got to same group by chance. There's already quite a lot of internal dissonance with the difficulty in how the 81 last boss is tougher than basically any of the later dungeon bosses (aside from like two from 90 dungeon), where too many of them have like 3 abilities that repeat over and over. It would benefit them to have more clear progress in difficulty, though they do build up well based on earlier seen mechanics.
Then again you sometimes get level 80+ player who runs away from people with Stack marker. Maybe some advanced or updated version of Hall of Novice would be in place?

At least with the addition of difficulty selection for solo duties they have bit more freedom to make them tougher.

I think some of the main problems currently comes from the newer skill adjustments (massive potency creep over the years) and lenience of the ilvl sync. This leads to most of the older content becoming completely unchallenging and often uninteresting as people can ignore and skip mechanics and are barely punished at all for failing, along with having very few skills to use which are very back loaded on some Jobs and doesn't really teach much about playing it. How can people learn to play or keep their interest up if everything is a breeze? You miss some fancy attacks and the base level challenge as things are now.
Most of the stuff wasn't impossible hurdle to players back in day, so could they at least make the optional Trials, Alliance and Normal raids closer to what they were during their launch? Even better if the mandatory ones would be too so experiencing those fights would be exciting instead of just pretty much ignoring everything.
If rebalancing or tightening the ilvl seems too time consuming, then just give us options to run roulettes and stuff on minimum ilvl and give greater rewards or ensure some of the rarer drops.

Then again a lot of people would probably be upset if their fast and easy roulettes were slower and slightly challenging.

Overall I'm fine with the current level as long as there's enough of Ex and up stuff to play through, but would like to see the older content given some love.