The less congressoinal lawmakers that come from Mass along with New York, the better for the rest of the country. Now only if California would lose some congressional seats, especially from the San Fran area.
Plus Mass and NY may lose votes for President.
New York losing Congressional seats actually isn't as good a thing as it would seem on the surface. Democrats have a great shot at taking both state Houses and Spitzer will likely be governor during the next redistricting. The seats that will be lost will almost certainly be Republican.