I'm really not that fussed. Do we need both a rail connection and a tram connection to the airport? Probably not. Are the schemes proposed not awfully expensive? Probably. Are the expenses out of control? Well, the cost of the tram system seems to have grown like Topsy. Do we need a fancy rail tunnel under the airport runway? Probably not. Are there cheaper options? Probably.
Is there scope for some sort of compromise? Seems fairly obvious to me, but what do I know?