"no good reason", except the performance, battery life & build quality?
Different people have different needs, preferences & ideological beliefs to you. If you measure the actions of others, based on your viewpoint alone, you will never understand the rest of humanity.
In 2022, middle class encompasses household income from $35,090.50 to $140,362.00. This measure of middle class uses the range from half of median household income to twice the median household income.
Wow, did you actually watch the video, and understand what was accomplished?
The technical expertise shown in this project is extremely impressive, and you are getting hung up on the title not living up to your interpretation of it.
And how will they know when the "useful info" is simply false?
Ignore the depressed, aggressive (sorry, "assertive") antics, the fact it can confidently assert false information is the true danger here.
People don't read beyond the headline as it is, they aren't going to check the references (that themselves are sometimes non-existent!)
It only works between devices signed in with the same Apple ID