No, it doesn't because I use an application firewall that BLOCKS them (I haven't upgraded to the crippled macOS). Moreover these are not "core" services and the OS functions fine even if they are blocked.
> If this terrifies you so much, add some ipfw rules and move on.
Why should I when the application firewalls I use are more user-friendly and require less effort? And why should Apple get to dictate what software I use or how I use it? (You may be fine with that and may have given in, some of us won't and we will be vocal about it).
> block it at the firewall so you don’t have to rely on Apple
No, Apple won't make me jump through hoops - the better plan is to DUMP apple if they refuse to value their customers needs. There are better alternate available.
This was exactly what I suggested: if you’re paranoid about Apple’s intentions, switch OSes. Your level of distrust is never going to be satisfied by the decisions they make with the other 99.9999% of their customers in mind.
Which is exactly what happens now. You’re spending a lot effort protecting against an imaginary problem rather than the kinds of attacks which actually cause problems. If this terrifies you so much, add some ipfw rules and move on. Better yet, think about your threat model and block it at the firewall so you don’t have to rely on Apple to protect you from what you fear Apple will do.