Be glad your guests enjoyed the food you made for them. Know that you can do better and push for that. Most folks know what they like, it may be awful to you, but, perfect to them. I never trust anyone else's opinion about food but my own, and a very select few oft friends. I think our national IQ on BBQ is fine, just far too varied.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"perhaps...but then again...maybe not..."