I don't think it MEANS that at all.
If someone gives me a gift - that I just LOVE! - but later decide that I don't want it; I can throw it away.
But WOE to the person who tries to TAKE it from me if I still want it!
Yes, it does mean. You did some work by acceptance of this and you do some work by throwing it away. Next you will say that you can re-accept the gift that you throw away. All of this is false teaching.