One plus one equals 2 and it always will, regardless of what kind of interventions take place.
If A=C, then regardless of the cause or intervention as you call it, C should be achieved and ewave should have seen it coming prior to the move.
Giving an ewaver the right to use another crutch such as saying the count got messed up because of blah, blah, blah, in addition to the readily available alternates, is like giving the keys to the hen house to the fox.