The power of centralised services, but that is a double edge sword. There will be a whole group of people who were on-boarded to bitcoin using other -custodial LN service on Bluewallet, who won't have...
Thus the double edge, no responsibility means not maintaining channel balances to allow withdrawal, not giving sufficient warning by at first stopping deposits, and thus not considering the implications of offering a service like this in the first place. Best to avoiding situations like this by focusing on how to decentralise LN services.