If you think there is an issue, and aren't a developer, then simply open an issue in the issue tracker, and let the developers deal with it. Constantly repeating and making nonsense analogies in some attempt to try to force others isn't helping anyone.
There is no "Home" in this respect, and having NTP and a connectivity check hosted at an Ubuntu sub-domain are not threats to your privacy. If you think they are, then block the connections yourself on your own system and be done with it. Make merge proposals to make it more configurable. Do something other than just sitting here repeating the same tired analogy trying to force us into your point of view.
That thread is full of FUD (Fear, Uncertainty and Doubt) over an incident from 2015 when there was an integration (now removed, in a desktop environment that is no longer used) that would allow you to search amazon store from your desktop.
Ubuntu is just as trustworthy as any other major linux distro.
I read here since more than 6 months but when I saw ReCaptcha I did abort the registration at the forum. ReCaptcha is really terrible and I also try to avoid Google services. I am still not happy about Akismet but willing to accept it which is the reason why I did now finish the registration.
It is very exiting and awesome to see what happens at UBports to get the choice not to use Android or IOS and get back some privacy.