Differences in pulling Assignment Submission vs Quiz Submission

[quantumblink]

I am developing an application to view user course data.

I am currently working on implementing Quizzes, which I've decided to implement as a subset of Assignments. Think a superclass "Assignable" with superclass "Submittable"

I've noticed that using the `assignments?include=submissions' endpoint returns Submissions as an Array/List. But using `quizzes/{ID}/submissions` returns submission as a Dictionary.  https://canvas.instructure.com/doc/api/quiz_submissions.html

Is there a particular reason why this decision was made? Or is there a better way to gather QuizSubmissions? Otherwise, this disrupts my implementation logic. Essentially, I want to know how many active submissions to make a decision in whether or not to offer to start the quiz or resume the quiz.

[quantumblink]

I ended up just representing it as [String : [QuizSubmission]] and flattening to just [QuizSubmission] in my data client. But this still doesn't explain the perceived inconsistency in getting this data.