I'd say that dialectical materialism is a "theory" in the same vein as gravity or other scientific theories rather than the colloquial usage of the term. I'm still studying it myself and don't feel I've read enough to explicate in detail - others are more learned than I am on the subject. That said, my personal feelings on the subject are just that - feelings, not facts, and can no more impact dialectical materialism than my feelings on gravity can allow me to fly.
That said, certainly people can disagree on how best to apply the theory to a given time or place. But if you're unwilling to provide details and engage in the conversation, you come across as being either dismissive or defensive.
Oh, for sure, but I do like to qualify my statements when I'm speculating without evidence. It is wild, though, once the you start seeing how much reality doesn't align with the endorsed narrative.