Lost again. You clearly have no idea what it is like to play a massive open world RPG. You can ramble on and on for 10 lines and it all boils down to total nonsense.
Can't tell if your daft or ignorant. Nothing I described has anything to do with being normal for other RPGs.
A level recommended to be done at lvl 16, you start it, have a sequence of events you can't skip or change the path from, couple conversations, bit of moving around, talk with one guy, start a fight, this guy is lvl 30. No other open world RPG does that ever.
You would have two situations, the opponents enemy is static and appropriate for the quest level, so call it lvl 15-18 enemy, or the enemy scales to within 2-3 levels of the player because said player may come and do this when they are level 25 and fighting a lvl 16 guy would be boring. You'd often get the later, some scaling in enemy level but with a base level appropriate for the level of the mission. That guy being level 30 is nuts by every standard of every RPG I've ever played(which is most of them).
This happens quite often, the rest of the things I mentioned are also not explained away by being normal in RPG's. Letting the game become absurdly easy with overpowered sets not very far into the game is bad design, not 'normal' for rpgs. Having a potentially complex crafting system with dozens of swords, thousands of components and having to find all these recipes.... then putting in 3-4 different armour sets that are very easily obtained that absolutely and utterly destroy the other dozens of weapons and pieces of armour is simply stupid. End game sets, sure, some sets that are okay for a while but drop off in power, sure.... but sets that make all other weapons/armour completely and utterly pointless... that is bad design and not normal for rpgs.
From level 1-10 I had picked up recipes for weapons i created that were sub lvl 10, but also weapons and armour that were level say 15, 27, 30 and at that stage I was in that can't wait to make them because they look awesome stage. As soon as I got the first witcher set... no interest in a lvl 30 word with 200 more damage when I have +5% sign intensity on the sword, +5-10% on the armour. Anything but armour with equal sign intensity bonus is worthless and nothing matches even the first witcher set let alone the upgraded versions.
99% of people who play will find and build a witcher armour set and once they have that set, upgrade it but never make another piece of armour or a weapon making almost every other recipe you pick up worthless. Again for 10 levels if I found a recipe I'd immediately check how good it was, what level I could make it. Post witcher set I get a recipe and I don't care one bit. THat is a completely broken mechanic.