I don’t think that quite captures everything, though. Because in the same way that attempting to block decoupling is a rhetorical device, decoupling itself (at least in a public debate) is also a rhetorical device.

The decoupler says “put aside your objections to my proposal for a moment so that you can better understand it; then later you can reflect on these objections with a fuller understanding.”

And the person blocking the decoupling says “no, the objections are valid and therefore should be kept firmly in mind whenever you are considering anything to do with the proposal.”

Both approaches are trying to achieve something in terms of discourse. I don’t believe it’s possible to say that one approach is more fair or valid or better in all circumstances.