ORM is a formal language that happens to use diagrams to express some of its features.
The full name is "Formal Object-Role Modeling Language."
We use NORMA to express the details.
Using ORM diagrams without understanding their meaning is a waste of time.
If you want to understand why some misguided people might believe that "Oh - we can do it with Lucidchart" (or similar), I suggest that you read my Amazon book:
"False Beliefs and Neuron Maps- Why people believe things that are not true."