It could be another reason, whatever the reason and conflict that lies between the dev and the exchange management that lead them to have miscommunication then they would be forced to delist it.
As for those coins that has turned to a scam, most of the exchanges that has that coin delisted it. I've seen a coin that has been delisted to all of its exchange where it has been listed so that factor is for real.
I'll mentioned that BSV coin is an instance the coin who have a conflict so as it was delisted on an exchange such as on binance, right?
But I'm still wondering the coin who caught as a scam coin but it was listed on the exchange, can you name one of them?
As far as I know if there is coin/token who have a fake team and end up with scam they won't ever to listed on the exchange. Their purpose only collected a money from such as an ICO, if the ICO has ended the coin won't be send by the team because they will run away before the ICO project ends.