It would be very helpful if deleted proofs (at the version level and all proofs for a given row) could be recovered. At the very least, it would be helpful if someone on the backend at Smartsheet could help recover a proof if it has been deleted.
This is an extremely important enhancement. Especially in an organization with a lot of novice users, there is a high probability of this type of error happening, which results in a high risk of lost critical information.