The request refers to tasks with a team as the assignee and with a time estimate.
Problem: The time estimate is duplicated for each team member in the workload, e.g.: if the task has 30m time estimate and the team has 3 members, each member has 30m of planned activity in its workload. This is inconsistent with how time is tracked, since each member will have to ideally track 30m, resulting in 1h30m being tracked in the task that only estimated 30m.
Solution: Allow time estimate to be split among team members, just like it can be done for multiple assignees (after all, a team as assignee is equivalent to its members being multiple assignees).