Yes, there are many useful diagrams in UML, but a lot of them (e.g. entity diagrams) don't map well to text based formats such as MermaidJS, because the positio

Yes, there are many useful diagrams in UML, but a lot of them (e.g. entity diagrams) don't map well to text based formats such as MermaidJS, because the positioning is quite important and MermaidJS often won't guess correctly. Meanwhile, sequence diagrams map very well from the text description.