This IS about winning with you else you wouldn't be saying we can't use D&D precedence for an object in a game based on D&D. People, when desperately seeking to "win" begin reaching for straws, sometimes very weak ones. Like you did.
Either way, to refute you... If I have 10% of the power of a minor artifact I don't have a minor artifact. 10% of the Deck of Many Things is an object that either has a neat effect or will kill you. It's not an artifact.
Is the effect unusual? yes. That's why it's reserved for the developers to dish out. Not something you can just find in a Chest somewhere.
This means every few weeks, or months, when the devs feel they owe us an apology they can hand us this.
I'd like to point out that, so far as I know, NOTHING in D&D allows you to remove feats once obtained. If anyone can name an object that lets you respec your feats in D&D, notify me... but I can think of none.
Yet you seem pretty comfortable with them doling those out like Candy...