I don't think they are doing themselves a favor by blacklisting these devices in software and punishing the users who happened to have bought these devices; does this sound familiar to anyone?
This is hardly the same thing though, for starters it's only a few devices and users who might have bought one unwittingly have bought stolen goods, actual, physical stolen goods which don't belong to them and could well be siezed by law enforcement. If those users become aware that they have a stolen device and don't hand it back then they are committing an offence too.
The clone serial chips I think you're referring to weren't actual, physical clones, they were/are completely different silicon programmed to be protocol compatible which is not illegal, the use of the trademark, USB VID/PID and, enabled by the VID/PID, the drivers is where it gets dodgy.
To legitimise the clone parts 'all' that need be done is to assign a new VIP/PID and write some drivers (I appreciate that's a big 'only' but even so), there is no way to legitimise those stolen radios without paying the company they were stolen from.