Actually this train was given for the capital amravati region, so it's not going to face any extension in the recent future.
Moreover, in lean seasons also, BZA HWH HS gives a occupancy of about 70-75%, it's the HWH BZA HS which is not getting the expected patronage. Giving a more favourable arrival at VSKP and diverting it via BVM can help 20889 to get better patronage