Problem Definition

With the latest release, JIRA v1000.456.2, the Kanban Backlog is showing the subtasks in Backlog.
Customers that were previously using Backlog on Scrum Board, expect that subtasks should not be shown.
Customer says that having subtasks in Backlog makes planning difficult.

Suggested Solution

Give an option to turn off sub-tasks as a default setting from the Kanban Backlog

Workaround

Use a Quick Filter for the Backlog view that doesn't show sub-tasks

issuetype != Sub-task

Note: This requires choosing the quick filter each time.. it also requires updating all other Quick Filters to include this otherwise, they return when using other Quick Filters.