How is this different from taking any other mains powered device, discarding the shell that keeps your fingers out of harms way and then using it like that?
Because you can't accidentally remove and discard the protective shell from typical devices. And there's no incentive to keep using typical devices in uncovered, dangerously live condition.
But you can accidentally break the glass on a LED bulb. Then there's plenty of incentive to keep using it like that. It works, and the Dawin Award nominee doesn't want to spend money on a new one.
Also LEDs 'look harmless.'
Real nice case of unintended consequences here.
I am sorry but this is trying to make an elephant out of a flea and trying to stretch a really weak argument into absurdity.
Have you never dropped a kitchen appliance or a plug pack or something else and have its plastic cover break, exposing its guts? It is not like only lightbulbs are fragile in a typical home.
E.g. a few years ago the small low voltage halogen lamps were popular (the kind with a bulb atop of two telescopic rods serving as conductors and a transformer in the base). The plastic of the base where the transformer is tends to get so brittle after a while that the trafo simply breaks off and rattles around at the slightest bump, eventually falling out of the fixture - live mains and all. I have two such wrecks somewhere in a junkbox here still.
I do wonder who would continue to use a lightbulb (or anything else) after the cover has been obviously smashed and there are sharp edges (assuming the bulb is glass)? If nothing else then that alone should be a good enough reason to replace it. (also a lot of LED bulbs are made out of plastic, so much harder to accidentally break)
That a regular lightbulb died when you broke it is not a safety feature of any kind. You can still reach into the light fixture and try to unscrew it while it is turned on - and get electrocuted on the filament holder in the process, even though the bulb is not working anymore. By the same logic you are using we should declare these unsafe - the broken bulb gives the false impression that it is safe to handle it because it seems off. In fact, from this (ridiculous) point of view a LED bulb is actually
safer - you are immediately aware that it is still powered because it is still producing light when you break it, so it will remind you to unplug it first.
I am not sure where did you get the concept that "LED look harmless" neither - a lay person has likely no idea what those components are nor why they should be harmless when it is a mains powered device.
I don't know how it is in where you live but here even small kids are being taught from the young age that using anything electric that has its cover broken is dangerous, regardless of whether it still "works".
If you need an explicit label and "idiot proofing" for everything because common sense is in a short supply that's really not the fault of the bulb manufacturers. It is like those labels "don't put a cat in the microwave".