My understanding of this story is that Jet wants to shift to a system where the aircraft will be cleaned by professional cleaners only when it crosses or returns to a major station like DEL, BOM, CCU or MAA.

Word is they are terminating the cleaning contracts from multiple vendors at smaller stations like PNQ, BHO, JAI and even BLR.

In this context, cabin crew doing a pre-landing and post-pax exit cleanup runs like on Indigo makes sense when at remote station.