Funny how much time they spend scrutinizing players who "cannot create a significant edge", isn't it? You kinda wonder why they even bother barring them. Except, of course, if your hypothesis is completely bogus...

Smart players are an anomaly. Thus the business can work even if some of the games are beatable.

the casino operators are not stupid.

You haven't spent much time in casinos, have you? They're among the most inertia-driven bureaucracies you'll ever see.

Option 1: Your analysis is incomplete and inaccurate.

Option 2: Countless media portrayals and first-hand accounts of card counters making money are all wrong. Media reports of expensive anti-counting technical measures are part of a casino conspiracy to make people believe blackjack is beatable. Books and conferences on blackjack game protection are hoaxes. People who've been barred from multiple properties based on information in the Griffin book are making it all up. Lawsuits against casinos whose security guards have roughed up card counters are actually filed by insiders as part of this elaborate theater they're putting on to increase public interest in blackjack.

You're pretty smart. Can't be #1. Must be #2!

The article says Google is crowdsourcing their data, but if so, where's the input? When I click on "My Location", I just get a message that "Your location could not be determined" - I don't see any followup on "so where are you, so we can add this location/wifi-signal pair to our database".

For what it's worth, Loki gets my home location exactly right, while Google doesn't even venture a guess.