Too much bark, of course there can be. But, that is burned, that is too much heat on one spot, as Bludawg said. The meat dried out too much, causing the meat to become hard and burned. It's not really bark.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"I'm Armenian...perhaps...but then again...maybe not..."