>It signals to me that the process doesn't work in reality. You are better off doing something else.
Whatever you do instead, you will also cargo-cult to some degree and fail equally as badly at.
For all the "You're doing it wrong!" I've seen in industry with respect to agile, I've also felt that every team I've been part of that did some version of it, seemed to function OK. I always found the "Agile Manifesto" a completely silly nothing-burger, but always understood the core tenet of 'agile' to be "employ tighter feedback loops", which... is sort of mostly how it plays out in practice??
I've belonged to numerous teams that followed some form of agile, to varying degrees of success (or failure).
The shape of what Agile meant in each of those teams was very different from one another. It would be disingenuous to say "the ones that succeeded were truer to Agile".
If Agile can be summarized as "employ tighter feedback loops", the whole Agile thing was beyond useless. A single sentence, as useful a tenet as it may be, does not a philosophy make. And this idea was not even new by the time the Agile manifesto came out (as explained in the linked blog post).