I feel like both of you managed to miss the main point. Like, deliberately, to the point where you're further attempts to defend it are really just working against you, because >>63530298
doesn't address the "It's so people can shout it mid-combat!" stupidity nor does it address really anything else that was said, and >>63530604
is just plain stupid to the point where I feel that it's a post made entirely out of desperation, like their worldview was about to get shattered because they can't accept that it's a genuinely stupid and absolutely inorganic classification system in the work they believed was perfect. Hell, Tinker doesn't even necessarily mean that EMPs will disrupt their equipment, or that their equipment can be disrupted at all, in the case of alchemists/mages/etc. Them being Tinkers has little to no bearing on their combat ability and is really nothing more than the origination of their powers, like several of the other categories.
Now, I'm going to say this one last time. One last time, because I've said it several times, and you've only tried dodging it rather than addressing it, which is enough to convince me that you actually understand this and are just unwilling to admit it.>It's a categorization system that cares about powers having some thematic link with what triggered them. That's something that was poorly executed out-of-world, but is absolutely moronic to adopt in-world.
It's not some hidden secret, it's not cleverly disguised, it's obvious and the attempts to pretend otherwise are ineptly contrived.