I completely disagree. 12245/46 Duranto is such kind of train which even without any commercial halt runs jam packed. That shows the demand for kolkata to Bangalore. Even if you check 12863/64 YPR Sf, you will see the train gets filled up itself at HWH.
So if Duronto's all technical halt are turned into commercial, then End to End people will suffer as their some chunk of quota will be taken away.
That's why by seeing the huge demand of AC classes in both 12863/64 and 12245/46 , SER started this fully AC...
more... dedicated train. And from the 1st run itself its been a huge hit with WL.