Your analogy may be reasonably apt, but if so, it shouldn't make anyone who makes their living thinking about systems sanguine.
It does turn out many consumers will trade ownership for convenience. Particularly if convenience comes at a fraction of a cost. Meanwhile, there are side effects: the people actually creating the product (recorded music) get paid a vanishing fraction of what they used to. That changes the economics of actually producing recorded music, shifting the ability to do it to people who can get their money elsewhere. Some people like to try and obfuscate that reality with talk of "new business models" and "innovation," but it all boils down to the assertion that people who make recorded music should have to do another job in order to provide cloud record collections like Spotify to a consumer for the cheapest price possible.
The consumer, as you've pointed out, doesn't want to think about this. Whether they think about it or not, it will shape what kind of music gets produced and by who, so perhaps they should think about it, even if the incentives are more long term and non-obvious.
Buuut even assuming they don't care to do that... it doesn't mean that people who do care to think about how that affects the industry don't have every right to "moan about the philosophy."
Same goes for AMP. Solutions like AMP will absolutely have second order effects. Many users don't care to think about them. Doesn't mean they won't be subject to those effects, that those effects are just about philosophy, and it surely doesn't mean that people who are interested in them have any obligation to stay quiet.
And of all the things to actually have this really be something people waste time on. Working out the economics of production and distribution of music in a time when making copies is just short of free is at least actually a tricky problem. The idea that making mobile pages that load fast is a tricky problem that requires a Google engineering solution is utterly ludicrous.