The rest of the article is not necessarily scaremongering, but they don't explain the issue well: it's not just a "giant clicker" as described, because it collects personally identifiable information (cellphone MAC address) without permission. This would be illegal in many other countries.

Additionallu, they claim the data is "encrypted" but since it's not an open algorithm it's possible that it's flawed, either because it's deterministic or reversible.