SYSE.53:10 - Rationale
Compatibility is a claim about a consuming relationship under conditions. Selecting individually plausible releases cannot establish it. Recovering those relationships first makes the calculation answer the engineering question, while keeping unknown premises and realization separate prevents a successful model result from being overread.
A conflict is useful when its demanding chains identify a changeable premise or an authority that can decide it. Preserving those grounds also lets an update reopen affected reliance without invalidating every unchanged component.