Yes, we can. Can we accept that it’s not the reason you assume? 
The leveling progression, together with the journey steps and the in-game lore, is there to guide new players and help them learn how to play the game. It’s a teaching tool.
It’s amazing how many people haven’t even noticed that they removed this restriction more than two years ago. 
Anyone can open a legendary chest with a skeleton key.
Because you don’t actually need to expand your knowledge point pool until that point. But they should probably remove that restriction, too. 
Think of the epic gear as your graduation present for finishing the Conan Exiles “tutorial”. Because that’s what the leveling system really is: a tutorial for people who haven’t played this game before.
Uh, yes. Yes, they did contain sorcery. Have you actually read any of the books? Have you watched the movies?
No, but you have the same expectations for it as for an MMO: the leveling progression, for some reason, must be long and drawn out.
That’s the problem with some Conan Exiles players: they got used to something and can’t shift their perspective and adapt.
The leveling progression was the Big Thing back in 2017 and 2018. It’s not anymore. Its purpose has changed. Adapt.
Same thing goes for people who keep crying about the legendaries they get with the skeleton keys. They’re always complaining about how those legendaries are “useless” and “not legendary”, instead of adapting to the fact that those items aren’t the best-in-class anymore and their place and purpose in the game has changed. But I digress…
Ah, yes, I was waiting for someone to start arguing about the Schrödinger’s Level 10, the elusive player who is simultaneously too inexperienced and very experienced. Everyone talks about “level 10”, but isn’t it fun how they ignore that level when it’s convenient for their arguments? 
Case in point: the Schrödinger’s Level 10 we see here is too inexperienced to handle a world boss, but they’ll have no trouble wading into a hostile camp, knocking out the sorcerers, and dragging them to the witch hunter camp 
The thing about level 10 is that it’s the level of the character, it doesn’t tell you anything about the player. If the player is experienced, they’ll breeze past level 10 without looking back. If the player is a newb, they won’t be doing any of these things you’re so outraged about.
I’m not sure. Is the issue that you like RNG? Because there’s this magical place called Las Vegas, you might want to check it out 
There’s no “imbalance” here, unless you’re referring to the fact that an experienced “level 10” player will know how to do that and an inexperienced one won’t.
If you can buy those 3 legendary weapons, so can anyone else. No imbalance involved.
Furthermore, they’re not best-in-class weapons, either.