Liar!
From article "Kochava also said users opted into having their data collected when they installed or used apps containing tracking code."
That's a lie, the user is giving the app permission to access data, not the developer to collect and share data. The popup on install does not ask to collect and share data* just that the app requires access to the data.
The user has not opted into having their data collected and shared as they were never asked for permission.
*I am not a google android user, so I am assuming that is so.