Grammar or creativity?
I'm happy that you could post such a debatable opinion. That's great response from you.
There ARE orthodox procedures for a poem . But all these procedures that you bring up are just procedures. They can't be standards.
In my opinion, there are no standards for poetry.
These procedures are founded by great artists. But poetry did not origin from these great artists. They loved poetry. They used their own system of writing poetry. They introduced that to the world and people adopted it. If poetry was bounded by such procedures and rules, then poetry should be owned by those artists who found them. Poetry cannot belong to anyone . So , in my humble opinion, poetry is not bounded by anything.
Creativity is mostly the result of striving to achieve beauty, and is mostly hard work. — Bitter Crank
And creativity, I think, is not a result of anything. It's a process. The process of thoughts that help you hold your present.