Why is there no alert when cancel the Analytics component edit screen?

The component creation screen that can be used in the Analytics workspace is very useful, but you may accidentally press "Cancel" or "Esc" while it is being created.
If I do this while I'm building a complex component, all the work will be gone.
Why is no alert displayed when the component creation screen is canceled?

(I think it would be better if there was a check button that will not be displayed in the future)