I 100% agree with you. I can't imagine the mentality to actually remove features from something someone paid hundreds or thousands of dollars (if you got the whole Mac set, or bought devices for others).
I can only imagine that Apple doesn't realize they actually ripped out solid functionality that worked seamless for years.
I can see change, that's fine. But if a significant capability is actually ripped out with no alternative, I can't imagine Apple wants to be known as a bait and switch, you invest money for certain capabilities and they are ripped out later, with no warning.
It makes a difference between it being a good business device to it being a PITA, having to manually try to recreate or change strong email setting passwords.
As far as synching contacts, I trust Apple's security and even use iCloud keychain. That doesn't mean I don't care about features other people may use that I may not though. Any capability they took out they should give a valid alternative to or restore, as people buy Apple products because they know(knew) what they were getting.
I can only ask that well intentioned people trying to help please do not confuse the issue of synching email accounts with web passwords, or with USB contact synching. There was a lot going on in that little iTunes section removed. Web passwords is a good feature but it's not even close to the same thing as synching email settings across devices. 3rd party solutions proposed don't really claim to synch email settings on either, at least the ones I looked into referenced throughout the forums.