Well, they've noticed how GPL is bad for their EEE strategy, so they've grasped the first occasion to fight it: can't do much with the code that is GPLv2, but can hinder the license update.
Which is essentially the same as tivoization...
Immediately nvidia-driver and radeon drivers would be illegal.
Those drivers do work better than their free/open-source counterpart but are hard to install (especially if secure boot is enabled) and do not play nice with the whole GNU/Linux ecosystem.
Radeon drivers specifically play nice with the ecosystem, but they feature crypto firmware blobs.
Network drivers tends to be good neighbors too.
Nvidia drivers cause more of a problem, as do ugly smartphone GLES drivers. (Not to mention very custom network chipsets there.)
Can you describe "their EEE strategy" in more detail?
What license update? And hinder it how?