Deer shot in the stomach and intestines do not usually jump kick and take off like that. I don't think you hit quite as far back as you may think. I think you probably got the liver mostly. I don't understand though, how you got a pass through, but the deer carried the arrow 20 yards?

Hard hit deer typically take the path of least resistance. Last night, I helped a friend track a gut shot deer (so I found out later... got some bad intel from him initially) and that deer went into a ditch we had to slide down in, and then went back up a place I wouldn't expect a healthy deer to normally travel. The deer laid up in the creek... if you didn't bump him... a liver shot deer will usually bolt like you described, and lay up inside 80 yards. If you don't fool with them, they will usually die in less than an hour. If you bump them, they can and will go several hundred yards. I would look in that ravine and other low lying areas... blowdowns etc..... there is an excellant chance the deer did not travel far, and bedded up and will be dead in short order.