By Lenn Thompson, Executive Editor The image of Finger Lakes red wines as typically underwhelming — especially compared to the regions often outstanding white wines — has begun to evolve in recent years — mostly thanks to two warm vintages (2005 and 2007) and a handful of producers really pushing the quality envelope. The region is getting its due for its red wines too now — at least here and there. Here's a wine from the more "normal" 2008 vintage that further proves how silly it is to generalize when it comes to wine. Heron Hill Winery 2008 Cabernet Franc…