Which is why I am surprised seeing this come from Google. Everyone has already admitted they are fine sending all of their data to them which benefits them greatly.
No. The vast majority of people in any organisation are timid folks who want what's best in the sense of the greater good, unless the greater good involves any courage on their part. These people are congenial, but don't confuse those with good people.
% and often mentions competition/monopoly laws
I think this is a win, because the consumer has the choice, and if enough people do it ,the resulting aggregated datasets will have exceptional power to help solve global medical problems.
If a goverment wants more power it makes sense to be able to read and store the data in their datacenter.
Maybe Google could be interested in move some of the processing load to the users devices.