We would find it very useful to set the default date range to the first date that time was logged to a project through to the current date.
We have placed some responsibility on our workers to keep track of time spent on projects looking at the estimated time vs the actual time so we can see what tasks we need to focus on and refine our processes. The team view this through the Timesheets Tab in a Jira Project. When you click on this tab it automatically filters for the current Month. We think it would be a good idea to have it default to the life span of the Project and if you want to look at a different period then you could use the filters and change it.