> Telstra and Optus to only pre-install Google Search on Android phones they sold to consumers, and not other search engines.

> In return, Telstra and Optus received a share of the revenue Google generated from ads displayed to consumers when they used Google Search on their Android phones.

So Telstra and Optus entered into this agreement and profited from it, too. Singling out Google is a strange choice given that all parties profited.