For me, it's mostly about having to think (less) about servers. As in, I'm managing the mental overhead of one less layer. The four bullet points you list are techniques that vendors use in order to facilitate this:
The flip side, to me at least, we trade servers for services. By becoming serverless, we also tend to being servicefull. It's a good trade, in my opinion, because it shifts the focus away from managing infrastructure and onto tools that will help you achieve your objectives.
I suspect, however, that we (the community) will continue to have these discussions for a very long time!
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