Kalkriese the Battle of the Angrivarii Wall ?

[Gaius Colletti]

Not that I am overly advocate of Kalkriese being the site of the Varian Disaster, but the Romans won the battle against the Angrivarii. Why would we have found so much Roman equipment, surely the Romans would have swept over the battle field after chasing away the Germanic tribes and recovered their dead and equipment, instead we have what appears to be the opposite finding no German weapons, as the Germans collected their dead leaving Romans and their equipment, similar to what Tacitus describes with the Germans leaving the Romans where they were died in his accounts of the Varian Disaster with some sort of religious reason.