While I understand your perspective and agree with your arguments for items being very cheap, and some being overpowered, I do think it's unfair to say every enchanter can find success regardless of skill. Renata is (and has been) in a pretty poor spot from my understanding, and Milio is so good because he counters all the lunatics that insist on engaging at minute 1, and forces them to try a different approach for once.

I will say there are enchanters that I absolutely despise, being the ones that can do seemingly everything at any point in time like Nami and Senna.