Solved! Go to Solution.
You'll be happy to know that more robust controls have been built into fill-in-the-the-blank question type in New Quizzes. Check out the Text Match section of How do I create a Fill in the Blank question in New Quizzes? to see how to use Levenshtein distance to accommodate the use case you've described.
For future reference, Idea Conversations is where our members discuss requests for enhancements to Canvas functionality. You can read more about the process in How do idea conversations work in the Canvas Community? and How do I create a new idea conversation in the Canvas Community? —keeping in mind that our teams are no longer developing new functionality on the code base for Old (Classic) Quizzes, which is scheduled to be deprecated early next year.