I dont know Im kind of glad that this fight is long I mean this guys are supposed to be the best out there so to have them beating fast just woulndnt make it belivable. the only one that could make sence dying fast wuold be Deidara since he already had an intense figth with Gaara and is injured.
Im also glad they showed all those puppets since they did mention that Sasori had like 300 of them