People use knives to stab people. Should we ban all knives?

Actually in plenty countries, plenty types of knives are not legal to carry because their primary purpose (of the type) is in attacking people, which is never a valid reason to have it as a result.

Much like how with the US exception, most industrialized nations don't allow free ownership of most guns.

So if anything, that's a bad argument to make as there's a lot of precedent suggesting banning such dumping devices entirely might be warranted. I wouldn't support that, but the argument you try to use as a defense exactly supports a ban.
Mind you, the ban would be on buying/owning/importing such a device, not in the actual dumping. As in, you are legally allowed to dump your games, only you cannot acquire the device to do so as it has been shown to be primarily meant to be used for illegal purposes (usually this would mean there are privosion so that for scientific/research purposes you can acquire them).

An example would be the R4 import/purchase ban in a few countries.