Not the parent you're replying to, but a guess: Because the presence of regulation suggests at least some vector for the regulated thing doing harm. Wantonly e

Not the parent you're replying to, but a guess: Because the presence of regulation suggests at least some vector for the regulated thing doing harm. Wantonly exporting something tightly regulated in its place of origin implies that the government is aware of its potential to do harm, and sells it anyway without the regulatory guiderails, which is a shitty thing to do.