I wonder if they would find a way to use this to disable ALL the airtags in an area.
For example, put a UAL airtag on a plane, and use that to disable all the other airtags.
Unless you think a huge, high-end airline "got confused"? It wouldn't have been against regs even if ti was a lithium ion battery because it's so tiny. What do you think they do about the millions of electric toothbrushes and shavers people travel with that have much larger lithium ion batteries?
They retracted it because it ended up causing a Striesand Effect, putting a lot of sunlight on how airlines do a very brisk business selling "lost" luggage.
Having dealt with battery regulations with airlines, couriers and postal services many times, yes, yes I do. They routinely fuck it up, even claiming that AA Alkaline batteries are too dangerous to ship.
... and lots of cases of "lost" luggage being due to the fact that decades after implementing paper tags, neither airlines nor bag/trolley manufacturers have gotten their asses together and worked on a standardized way to reduce instances of tags simply getting ripped off during handling.
Like, it wouldn't even be that hard. Place a long, wide recess maybe 2mm deep along the entire trolley, where the tag can be stuck in and is guarded that way against conveyor belts or other bags ripping off the tag.
And maybe invent a system where you have to scan your boarding pass and the tag barcode to leave the baggage claim area to reduce the amount of cases where people have taken the wrong bag.
I get significantly better responsiveness from them at an Australian airport or Singapore airport than I do at Bangkok airport. That doesn't mean they don't work, it just means it's unrealistic to expect minimum wage baggage handlers in Thailand to have an iPhone in their pocket.
There's a good bit of separation between the cabin and the cargo hold. I imagine it could be pretty difficult to get a read from a low power tag deep in a bag in a pile of other luggage with several other big metal plates between.