Hi, Duayne,
Technically, everything is possible, but it involves a lot of work and requires cooperation of multiple actors. To remove matching requires to cancel invoice, if it is paid - to partial rollback payment first, and if payment is matched in bank reconciliation - this reconciliation should be removed at the very beginning. And then invoice must be registered, matched and approved and everything done once again, in reverse order. Coordination is required to avoid doubled supplier payment.
As Shawn suggested, perhaps solution would be to register one or more dummy zero-value supplier invoices (one for each invoice affected, with its original number with some suffix indicating correction?), matching them with incorrect receipt with negative quantity and with correct one with positive? This would keep effort in one area only, eliminating need of cooperation, but I am not sure if all “downstream negative effects” you mentioned can be eliminated that way.