Well, this function will classify the filter as being a 'deleted contact' filter if it has the CLF:Removed filter, regardless of the other part - if it doesn't then conform to the required pattern, there will be an error in expansion.  If we don't classify it is a match here, it will go on to the normal expansion, which will fail if there is any instance of CLF:Removed.  So, it doesn't matter, is what I'm saying, I guess.