awickham10, I checked around about this today. It seems that this is b/c when that feature was developed, the current versions of DB2 made the medicine worse than the illness... That is to say that monitoring blocking imposed too much performance overhead. We think this may have improved since then. We suggest you take a look at custom reports and alerts. You could do some reports to see blocking over time and alerts to let you know about any long outstanding locks. If you need help with the custom alerting and reporting features, the support team can help you. I will see if there is a feature request for this, here on Thwack, and if not, I will add it.
Thanks!