It says right there in the blog post - bike theft prevention.

AirTags are less useful for that use-case right now since the bike thief will get notified of the existence of the tracker on the bike once they transport it, and are hence prompted to find and remove the tag.

▲

avhception an hour ago | parent [-]

The blog post said bike theft prevention, yes. I'm not familiar with the ways AirTags work, so I had absolutely no idea how "silencing" an AirTag would help with that. I actually came here to the comments in the hopes of finding an explanation (which you thankfully included).

	▲	TeMPOraL 35 minutes ago \| parent [-]
		I think half the comments still miss what the "notified" part means. It's not jut an iPhone notification that a tag is following you. The tag literally beeps loudly, to help the thief locate it.