I think that's why the "jailbreak" wording I've seen used is fairly appropriate. The flip side to the risks that result from trusting some sort of locked bootloader for security also mean that you can gain more control over your gear.
On one hand, I think that aspect is wonderful news but on the other hand, there are already a lot of options for devices with unlocked (or unlockable) bootloaders and some orgs may have specifically desired the locked option as part of their security setup and this undermines that.
The only thing that is relevant regardless is how it illustrates the flaws in any system that relies on secret master keys/backdoors
On one hand, I think that aspect is wonderful news but on the other hand, there are already a lot of options for devices with unlocked (or unlockable) bootloaders and some orgs may have specifically desired the locked option as part of their security setup and this undermines that.
The only thing that is relevant regardless is how it illustrates the flaws in any system that relies on secret master keys/backdoors