Counterpoint: accurately ascertaining an engineer's capability is their secret sauce, why should they be obliged to share that information with anyone?
If that were really the goal then they would never publish the information in the first place. Instead they are apparently scrubbing it _after_ they leave. That's not preventing another company from using the data when hiring you away, that's being petty and erasing you from their history for the most part.
Who's publishing it? Apple is not sending out a list of who's at which level. You need to bring evidence if you're claiming otherwise. Products like Work Number are based on inference or direct observation of these titles through payroll integrations or other exhaust.
Read the article. This is about Apple submitting this data to private companies like Lexis-Nexis and then changing it when employees leave.
You are mistaken: Apple is not submitting that data, that's not how these products work. These data products are collected via scraping, other software integrations (e.g. payroll), or sometimes calling for employment verification, not from first party submissions. An accurate org chart of a company is valuable private knowledge, no company is just exporting it so that anyone with a few thousand dollars can get a copy.
Much better said than in my parent comment, cheers!