so i am asking, is any content out there actually difficult or are we supposed to be able to clear everything with just blues and 2 or 3 attempts?
HM/NM modes are more difficult than Normal Mode. For example rockets at 1st boss on phase 1 hits for 12-14K damage. In normal mode they can't hit through the Sorcs shield. Also enrage timers are more challenging, and bosses gets some new mechanics.
Normal Mode was created for PuGs, you can tank without tank gear, DPS in green gear and so on.