I don't defend them, I don't care about their business, don't own McDonalds stock or something, no interest there to defend them. But If Bitcoiner wants to eat there, it's just more easy that he can pay with sats directly, instead of doing BTC to cash non-KYC exchange conversion somewhere and then paying with cash, which is extra time and effort. If company don't want to hold Bitcoin they potentially could, that's actually not bad for you, you have more time to stack sats cheap.

All I know from a person I have met that he paid more than a year ago with BlueWallet using LN there without problems.