Here's my thoughts, based on logic not emotion.
At the root is the question: should FAA accommodate the artist's title, or should the artist conform to FAA's shrinking font style?
If the artist is to conform, then the artist needs guidance (i.e., standards)
If that is the case FAA should publish a mechanical requirements page. They don't.
That said, and until done, with no guidance supplied by FAA, not even a warning about long titles, it becomes FAA's responsibility to know that some artists may title short, and some long.