There aren’t any other “weakest links” as the rest of the system is all copper.
The first picture actually happened when I was talking to my neighbor. The line was already exposed and while we were talking, we heard a swoosh sound and looked over and saw that the pipe had started to leak.
The pressure wasn’t really the issue,it was more flow. I knew when I bought the home 13 yeas ago that at some point, I would have to change the line as I knew the neighborhood had poor water pressure.
I was just surprised that they took the time to do it the way they did. It probably cost more to do it that way than to just run one continuous copper line.
Now, you can run every fixture in the house and there is no loss of pressure. The days of my little prank on the wife, of flushing the toilet while she is in the shower, are gone. I’ll have to come up withe some other prank!