NPXS has not been doing well for a long time so it stands to reason at some point it will be dropped by large exchanges and Binance added it when there was a lot of positive news about Pundi X and when Binance had different rules for considering which coins and tokens to list.
Of course the price will sink, but prior to the listing into big exchange, NPXS was really doing well that's why they were voted and won as the community coin of the month and got listed in Binance for free. If BInance will delist NPXS, that would be a nightmare for investors who are still holding this coin.
Indeed, they arent doing well. They just got hyped, and never actually went anywhere. The only thing that might keep NPXS alive on Binance, is volume and/or the Dev team showing Binance they're legit project that back up what they're claiming to accomplish, and a strong community supporting it !