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CVE-2018-6242 allows dumping keys from affected Nvidia Tegra processors that are used, for example, in Nvidia Shields. That hardware flaw is unpatchable in existing units and revoking their keys would mean rendering a large swath of media center devices unable to do their job.

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Which basically makes devices with this processor the mentioned "legacy route for HiRes content", until content-providers decide to flag those trust-chains as broken and fall back to Widevine L3 (SW-based).

This happened more often in the past than people may realize, especially on devices from Xiaomi, Oppo, OnePlus.

Netflix is actively monitoring this and are escalating to device-vendors as soon as they see suspicious load and are about to flag the devices.

... all to the detriment of paying customers who happen to use these devices.

Those keys were downgraded to L3.

Oh! I was not aware that happened. Right now I can't find anything on that matter (not that it would be highly advertised). I'm not doubting this, but do you have a reference for that?

What? That should be illegal. They changed the rules after you already purchased the device

Got to keep consumers in their toes.

You're supposed to buy new devices, consume.

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