All these blobs can get easily updated/replaced by the user without having to hack the hardware in any way. For some reason there's a lot of FUD going on around that issue.
How is it FUD? Yeah open-source drivers will get updated. The binary blob firmware of a component? Not really. If you replace it, it will still has the old/potentially buggy firmware.
The FUD is about not being able to reflash and update the blobs just because they're not stored in the rootfs. It won't get done as part of regular system updates because they're non-free, but you're able to do it on your own pretty easily.