But looking at the stats of the normal and enchanted weapons it is obvious that the majority of the enchanted weapons are simply better than their normal existent.
End of keli2's quote
I think "better" is a pretty situational term in this case.
Those weapons are half "elemental typed" damage and the other half is "B/S/P typed", which means there are a few situations in which they will perform very well, a few where they will perform worse, and all of that sits atop the existing physical limitations of their damage types. Their per-level damage output is inferior( ignoring the fact that half of the damage bypasses armor).
In a very real sense, I think they are balanced well, in that they are more situational than their mundane counterparts and there are a greater number of routes to limit their effectiveness.
However, they are situated in a tree full of goodies for caster, champions, getting champions, and making buildings that gets better the whole way to the top. This is opposed to a tree full of increasingly sharper and pointier sticks, which at the halfway point become essentially useless improvements.
In short, I think it is more accurate to say "pursuing magical weapons has a greater overall benefit to the outcome of the game than pursuing mundane weapons".