Since XRP ADA are all major cryptocurrencies, the issuance of a delisting notice for the designated trading pair is a separate service issue on Binance, so it does not have much impact on holdings there, but imo like the OP's suspicion, it could also be part of the cause of the volatility with that cryptocurrency. But honestly, to me they're too big to even think about the risks, although we've seen volatility with XRP in the past when it's been generally pushed, and if you want, you can also bring it up in advice to move assets to places you think are safer than staying on Binance.