You would not dare to call friends and neighbors, you rather throw them away. Public outrage only over the first
I couldn't find any information about this, is that more than a rumor? Where did you read this? Honestly I find this hard to believe without more evidence.
- Switzerland got their doses later than the US for a variety of reasons, so the US was able to give them away earlier, and lift the age restrictions earlier
- Switzerland made clear groups to assign priorities, with which you friend might not have been happy (presumably because he is in the last group, as I am)
That would explain why in his personal situation he was better off getting the vaccine in the US while on vacation there, but that's not really a case of too many rules or red tape holding the vaccination back in Zurich.
I live in Zurich, the vaccination program is crystal clear. If there are free slots, you can book an appointment. Up to recently, if you were not in a priority group (which are well-defined), you couldn't book. Now it's open to everyone. I haven't heard of vaccines thrown away.
I don't know what your friend found confusing in Zurich, or how he somehow concluded that flying long-distance during the pandemic to get a shot in CA is worth it.