Not sure how well this will play with more data but you can create a calculated dimension:
=aggr(if(Match='Match' and sum([A Amount])-sum([B Amount])=0,Dim,
if(Match='No Match' and sum([A Amount])-sum([B Amount])<>0, Dim,
if(isnull(Match), Dim))), Dim)
Then just check "Suppress if value is null" for the dimension and it should show what you expect in the example.