I disagreed with GP's use of the term bricked to mean unrecoverable. You seem to agree with me because you wrote that a bricked device can be recovered with the proper tools/skills/training. I hadn't considered partially-working devices, but I think you're right that they shouldn't be properly called bricked.
The threads here show that even highly technical people disagree on what conditions should be considered bricked versus broken. To a non-technical person whose device isn't working, however, there is no practical difference.
I actually changed my mind a little after posting that comment. I think it was mentioned elsewhere also, but even something that I would consider "bricked" could still probably be recovered by someone with access to the right tools (ability to reflash via JTAG, replacing chips etc.)
I would refine my definition to be that a "bricked" device is something that has occurred via a failed software update making the device inoperable to all but the tiniest subset of users.
The threads here show that even highly technical people disagree on what conditions should be considered bricked versus broken. To a non-technical person whose device isn't working, however, there is no practical difference.