TODO's on Device Add "Delete" permission. 1. Reiterate this to all field techs the swiping 2. Make an ideas portal suggestion to update the permissions for TODOS on DEVICE to include more than just VIEW and EDIT, and perhaps ask to add a DELETE permission as well. Then this would be hierarchy rules and if they only had edit it wouldn't be able to delete or swipe fast and accidentally delete.
Tech's in the field are able to Delete Task and are doing so accidently by swiping.