Extremes have been getting harder every expansion.
Savages have been getting harder every expansion.
Dungeons on the other hand have pretty much stayed the same difficulty and so the gap between MSQ and optional content has grown quite a bit.
I think it's a great idea to increase the difficulty of dungeons/normal to slowly teach players the mechanics they can expect in harder content.
Me, who joined in EW and had an experience in the first EX trial I tried that made me almost completely abandon the idea of extremes/savage would've appreciated this.

Who cares if you wipe a couple times if you have fun ...