Are you suggesting uBO is sending data “back home”? It doesn't, and this comment is borderline FUD.
Whether or not this is a sufficient solution is one thing, but there are some legitimate problems with the current state of adblocking. Being able to provide a similar solution in a far more limited fashion would be a good thing for users.
The moral dilemma here seems to be that Google is unwilling to privilege a good-citizen adblocker like uBO over other extensions; they're an ad company and any explicit step towards promoting an adblocker probably is hard to explain at shareholder meetings, even if the engineers want to.