People who weren't there just after each expansion release tend to not know that with lower ilvl gear, fights were harder and took paying attention to survive. Pretty much anything ARR-EW now lets you get to the ilvl cap relatively easy so long as you have poetics to spend on the gear you need, and it is a huge damage/damage mit change from the ilvl up to 49/59/69/79/89 to 50/60/70/80/90. Usually about 50-70 ilvl in difference in fact. While yes they do ilvl cap some dungeons to keep artificial difficulty within a certain limit, some of these usually set the bar higher than others so there isn't a 'face roll' effect like we had before they put ilvl restrictions on some of the ARR content (IE rolling in with ilvl 130 for content made with ilvl 50-60 made the content laughably easy, now it is just...easy due to ilvl cap). The problem is, those who weren't there for those varied gear tiers early on are saying content is far to difficult now simply cause...it is their first experience with it.
Putting that into perspective, do you then not think that the closer they get to current content, that difficulty curve is warranted? They should know by the time they hit Dawntrail Normal Raids that:


- They're expected to have some understanding of their job kit.
- They should have their gear updated as possible.
- They're about to answer mechanics they likely haven't seen before.


Normal Mode Raids in general are allowed to be as difficult as reasonably possible, mostly because it's optional content. Even then, it's never impossible to overcome. These people who jump content and get all surprised pikachu face when current optional content asks more of you have no room to complain.