I’m not sure if it has been mentioned yet, but you don’t need agony resist to experience fractals. There are no new fractal instances unlocked at higher levels. Level 1 will let you /bow for achievement at cliffside just like level 50 will. Higher levels are merely there for those that have more time to play than the game content was designed for. Just like ascended gear, it’s there if you want to craft it, but not required to unlock access to new content.
That said, fractals are a grind if for some reason you want to do higher level fractals but don’t want to do fractals. Which is like saying you want to run a marathon but don’t want to run, but I guess people will find just about anything to kitten about these days.