# Yes

Non-competing doesn't allow an answer to do what it wants, and not meet the questions specifications. If a question has a specific scoring system, answers whose scores can't be calculated shouldn't be marked non-competing, they should be removed from the question. 

In short, if I posted an answer to the [Hello, World!](https://codegolf.stackexchange.com/questions/55422/hello-world) question that didn't display `Hello, World!`, is it a valid answer? No. Can it be marked non-competing? No. To quote Dennis

> Marking an answer as ***non-competing*** does not exempt it from being invalid.

The Mathematica answer, while being interesting, did not meet the answer specification, and, [per our rules](https://codegolf.meta.stackexchange.com/a/7990/66833) it should have been deleted. This also applies to any other answers which, while accomplishing the task at hand, can't be scored.