Earlier quoted context omitted.
Every time you use the word "should" you beg the question. Why, exactly, are incentives aligned to make it so? Or is the problem that the incentives are not in fact set up to encourage the desired outcome? Anything else is wishful thinking. People seldom do what they know to be right; they do what is convenient, then repent. It follows that one must make the right thing the convenient or rewarding thing if one wishes…
Reviews should be facts by definition of a review (as I use it), so the question is not begged. The incentives are 'aligned' that way because it is the only way to benefit. Publishing into an echo chamber (or void) is not science, by definition.
Publons (mostly uncited) are the coin of the realm. I don't usually bother submitting a methods paper unless I know a few citations are in the tank, but some people publish just to get their metrics up. A lot of people, really. The more I think about it the luckier I feel not to have to continually publish jackoff papers. If I wasn't so lucky in terms of collaborators... Well, I guess I'd GTFO of academia, really.
Lots of folks have to "show productivity" with bullshit papers that don't matter and no one reads. Needless to say, reviewing such papers can be a rather dull affair.