The search queries that get sent to Google are probably the least interesting part of this to them. Sure, Google will get some additional search queries and be

The search queries that get sent to Google are probably the least interesting part of this to them. Sure, Google will get some additional search queries and be able to target you slightly better, but it's a rounding error in terms of the data they already have. The interest in this on Google's side is on having a permanently connected 'listener' on your network to identify which devices you're running and when. If it's running through your WiFi network, Google is going to know about it.