To be perfectly frank, this proposal seems far more about creating the appearance of safety than addressing an actual deficit in application correctness. I'm not questioning the value in detecting unhandled promises (resolved OR rejected) as a development tool for calling attention to a potentially undesired flow... but just like other lint rules, this belongs in tooling and NOT the execution environment.

antive issue : A substantive statement of the issue consists of two parts -- i. the point of law in dispute ii. the key facts of the case re lating to that point of law in dispute (legally relevant facts) You must include the key facts from the case so that the issue is specific to that case. Typically, the disputed issue involves how the court applied some element of the pertinent rule to the facts of the specific case. Resolving the issue will determine the court’s disposition of the case.