I can personally attest to sitting on the ground in (I believe) in Abilene, Texas having be diverted from DWF for bad weather. We left MSP on AA about 9:30 am but the weather must have developed while we were enroute, thus the diversion for fuel to Abilene. I think we got into DFW about 3:00 pm. We were not allowed to deplane but they did bring pizza and water so they tried to treat us right. Personally in regard to bad weather I'd rather they opt on the side of caution. I've had enough of rough rides over the years.