No, no, Mala, that’s not the point. The point is there is no progression (effectively) after that point, only in reverse. Difficulty is a joke in this game from beginning to end…
My firebolt sorcie could keep up with the monster damage pumping all into vitality, and pumping synergies/mastery, without needing to worry about farming at all. Spammable teleports, town portal parking, and general footwork did the rest of crowd management. Most enemies before act V never went much higher than 3 firebolts per kill, which was sane all things considered.
Grim Dawn on the other hand? Not much footwork outside avoiding death pools, no tp spam, no town portal tricks cause monsters are leashed to their spawn area. Charge pathing turns the monsters into perfectly homing missiles (Looking at you flesh hulks and aetherial colossi) that will perfectly track and most likely auto-hit the player, forcing me to engage in the tedium of defensive stat work (Which I could previously handle by pumping vitality and keeping elemental resists at 50% or higher).
So whereas d2 gives a power plateau to the right build at the mid-late nightmare section, Grim dawn gives a big plunge as early as 10 levels ahead of your gear. In diablo, bear in mind that weapon builds have a power plunge from needing more stats kept up, block, attack rating, as well as weapon base damage which spellcasters can gleefully ignore. In Grim Dawn, you can find yourself going from facetanking Shar’zul at level 90 to having to benny hill him at 100. That comes from having scaling enemies and non-scaling random gear.
So the result is that D2 does it brilliantly. It is a very RNG loot hunt game where you kill monsters and sometimes get awesome things, most time you get crap, and very very rarely you get a “build defining” item, which Grim Dawn does too, but with more frequent drops, guaranteed legendaries from certain quests, guaranteed legendaries from some chests, without going deep into the “D3” point of showering you with the stuff (aside from The Final March boots. Those are WORSE offenders.), which is a much better handling of the loot hunt aspect, better than D2 or D3. Also guaranteed faction recipes, and guaranteed random legendary crafting from etram and bella fald. However, Unlike D2, it has no circumvention of the rules.
It still doesn’t quite have the level of “gear-independent” skills/builds like the fishymancer (Or anything relying on Leaf RW), other MMs and casters (Bone necro with prisons).