I agree, it is unfortunately a hack. As well, of course I am open to doing this properly. However I could not find the proper solution at the time.
I used this hack to clear all saved data stored to the local machine from the "System Save Slot". It acted as a simple one line function to globally clear everything in the project itself. Unlike the browser clear cache, which isn't practical for this project.
Unlike "localStorage" which has (Clear Storage, Remove Item) the "System Save" doesn't seem to have a clear function. It only has (load, load from Json, save) I am open to suggestions and appreciate any feedback you may have.
Many Construct users have had this question and have also resulted to deleting the database.