Error when initializing LIST DoctorsInSurgery = (Adams, Bernard) ? Intended?

The only way to initialize a list is by having parathesis ( ) around each INDIVIDUAL value.

LIST DoctorsInSurgery = (Adams), (Bernard) //Success

When modifying the list, this works:

~ DoctorsInSurgery = (Adams, Bernard) //Success

However when initializing, we can't do this:

LIST DoctorsInSurgery = (Adams, Bernard) //ERROR!

Is there a reason why the syntax this way? I think I am beginning to understand why (it's starting to make sense as I type this out) but just wanted to make sure this wasn't overlooked. It's easier to type just two ( ) around the entire LIST (ex. if you wanted to make ALL doctors in) rather than do each one individually (which is a lot of extra work if you have a huge LIST).

No file, test, or entry point is named. Reproduce the two LIST initialization forms and compare them with the working modification form, then trace the syntax handling to determine whether the error is intended. Done should be a clear decision about the syntax behavior and its corresponding documentation or implementation scope.

Written by the indexing model from the issue text.