New Service App Complete Button

New Service App Complete Button

Does anyone else have an issue with technicians completing work orders off of their tablet without getting any signatures? What we have found this does is designates the work order as complete but does not send it to the Doc center to be processed. I know that there is a button to hit for "customer not available"; however if the technician is not remembering to sign beofre completing, then they will not remember to hit that button either. 
What we would like to see is for the App to be updated so that the complete button can not be activated or used until the signature has been accepted. 
Would anyone else like to see this fix?