So much contradiction wrapped up into one simple comment.
They're dogmatic because they pretend that it's aligned with the sacred texts? And you're better than that because you adhere more strictly to the text? Do you see the problem here? In fact, tankies don't judge AES by textual alignment. It is not a requirement that any state that calls itself communist does what the books say.
In fact, it's clearly impossible for them to do so, because the books are theory, which comes before practice. Practice will always be ahead of the published and established theory, but it will always be behind the leading edge of theory which is not established and often not published. That theory is not settled theory. It gets settled through... practice. We are all capable of incorporating a collapse of China into our theory as much as we are capable of incorporating a transition to a more socialist organization into our theory, because our theory is built upon real world experiences, not textual analysis.
But also, how do you account for the tankies' support for the smaller, and even the smallest, state that calls itself communist? Are they worshiping them too? What about when the small states and the big states do it differently and the tankies support both of them? How does that work?