Why I enjoy the campaign more, AKA RNG Burnout in the endgame

I am burnt out by every single mechanic being RNG in this game.
I am not opposed to RNG, but it's just too much.

Vaal Orb +1ing tier 15 maps bad RNG.
Crystal giving +1 to nodes bad RNG.
Time to find another Corrupted Nexus => even more bad RNG.
=> bad RNG³ => burnout experience

Lv 79 Expedition Logbook drop bad RNG.
Olroth in Logbook bad RNG.
=> bad RNG² => burnout experience

Orbs giving terrible modifiers for even difficult to obtain level 82 gear bad RNG.
Orbs giving okay modifiers with terrible tiers for even difficult to obtain lv 82 gear bad RNG.
Recombinator seemingly never succeeding.
=> bad RNG³ => burnout experience

Abysmal exp rates at level 90+ => burnout experience

So you just do map after map, nothing happens, nothing progresses, and you progressively get more and more bored and burnt out.