I would take "for commercial purposes" to mean aggregating the data for wholesale, or offering some kind of analytics service across users.

Whereas showing ads in the same client where the user is also viewing their own data is incidental. The purpose is to provide a useful intermediary service, and the ads help pay for that service, in much the same way a search engine can reproduce data from websites and show ads at the same time.

And where did TPG enter into a commercial relationship or affirmatively agree to these terms?