No, it implies that they are not illegal, and I would agree. That doesn't necessarily mean they are legal - they are alegal since US law does not apply outside its borders. Just like there doesn't need to be a US law making it legal for you to hire a prostitute in the Netherlands or gamble in an Indian reservation.

Admittedly, that argument is not very convincing for the US in particular so pretend we are talking about some other country that is not the self-appointed world police.