Hi @herbertpimentel, hard to give a satisfying answer to your question. For libraries to become de-facto standards, you need them to be both popular and effective to some degree.
We are probably mainly lacking in popularity rather than effectiveness, but there are other good reasons not to use Redux-ORM. For one it's the increase in bundle size (may now be less thanks to tree shaking). And other times, people may not always need our features like model-based schemas, automatically invalidated selectors based on changing model data etc.