No, no... I don't do a lot of mud at all.. I mostly trail ride, on difficult trails, and hills..
BUT, I crawled quite a bit this weekend, at the Zookimelt. and did pretty darned well for my ground clearance
And yes, you are right. Rock Crawling needs the most flex.. BUT Mike Hagen won the Rock Rage at the Melt again this year, and his Rock Star won't flex too awful well at all, but it will climb to the top of the RTI ramp without rolling over....
AND many of the guys asking these questions never ever see the rocks, mostly street, and some trail.
You are right, but I still contend flex isn't as important as many of these kids are thinking