Re: test the model and hope the real thing matches?
"the only place where theoretical/computer-simulated ''tests'' would be valid - where the use model was built using the same assumptions as the design model. "
"tests are needed to ensure that we have got the physics right."
There are some people in Derby that you (or maybe the article's author, Gareth Corfield) might want to talk to/hear from. That's if the relevant folks are not already redeployed for cultural re-education.
If you thought MBAs were bad for safety critical systems, just wait till the first MBSE-related incidents (they won't be 'accidents') start happening. Some organisations' understanding of MBSE seems to have degraded since it was first proposed.