That being said, there’s merit to the idea that lockstep dogmatism to a 175 year old definition of a political model isn’t necessarily a successful model for any given present day era.

Theory is useful to learn how to figure out what to do. Some of Marx's predictions ended up being wrong, most notably his prediction that the already industrialized countries would be first to revolution. However, his work on how to understand how society works and how to change it isn't outdated. To make an analogy, any scientific theory may be proven wrong, but the scientific method will always remain a valid tool for understanding the world.

This is why I’m wary of “read theory.” Sure, read theory, but don’t treat it like a Bible. Expand, adapt, update, adjust.

Coincidentally enough, there is theory about this very issue. Dogmatically following theory when it is not applicable to your material conditions is a problem Marxists regularly grasp with.