Yes Sir. I totally agree with your point. But normally LPs lower down the rear panto if they are reversing or going to Trip shed. May be Trip shed or Loop lines where Locomotives are parked are located on the side from where the train had arrived. If this loco starts accelerating backwards , it may pose a risk to the OHE . Places where fog is prominent , Lps raise Front Panto to avoid frost settled on the surface of the OHE as frost may degrade performance.
In this case the loco must have came from the shed which may have been situated towards the NZM side of the Platform. Previously ,...
more... the L P must have Raised the front panto but after getting coupled with the rake , it must have been undergoing panto Change. the Lp must have been on the verge to Raise the rear pANTO.