PoE, D3, WoW, Wolcen, GW2 and every other single online RPG does it really easy.
PoE’s respec is much more drastic than LE’s, yet it still works. How doesn’t it hold weight? How about Wolcen, where you literally respec every time you equip a new weapon? Only people who haven’t played many aRPGs would say that.
You are making LE sound like this incomprehensibly difficult game, when in reality it’s very easy, compared to games like PoE and Wolcen.
What character do you create to play a Marksman?
What character do you create to play Bladedancer?
If they are both Rogue, then they are the same class. If they weren’t you would be right. In WoW survival hunter is mele, marskan hunter is range, they are the same class.
In PoE is much, much, much more drastic than just being mele or range, you literally have different skills and setups within the same ascendancy, let alone different ones, but it’s still the same class. Ocultist, Necromancer and Elementalist are the same class, for example.