I don't know whether they are embargoed or not, but on Amazon.ca and Amazon.uk it's very easy to find Android Kodi boxes pre-loaded with sketchy apps and Kodi plug-ins that are also fulfilled by Amazon. I'm pretty sure in Canada and the UK, that those products have been heavily targeted by the government for piracy. Several local sellers of those boxes in Canada have been prosecuted/shut down, yet they are still so easily available on Amazon.