Comments-only: Hard Due Dates

Hi, @Alexis
thanks for the new Comments-only Feature.
I think you at Asana had your reasons to define rights on comment-only tasks the way you did. We were quite excited to see this feature…until we discovered that it is possible for the assignee (with comment-only rights) to still change the Due Date.
For us one big advantage of comment-only projects would be the ability to have “hard” due dates.
Can you please rethink this? Please.