Did anyone actually believe the device would never be rooted? If it is released, it will be hacked. It may not be immediate, but if there is enough interest then in time the blocks will be circumvented.
Time for you to switch then: "New in version 2.0: Ads are actually BLOCKED FROM DOWNLOADING now, instead of just being removed after the fact!" https://chrome.google.com/extensions/detail/gighmmpiobklfepjocnamgkkbiglidom