Sometimes the assumed condition is deliberately broadened so that the audience sees how far the implications of its position extend. The focus then shifts from the surface possibility to the conclusion drawn from it.
The issue is illustrated by expressions including “Shall We turn away the reminder from you?” and grammatical or reading-related alternatives. It would be misleading to impose one definitive parsing without attending to those alternatives.
The example shows how rhetorical purpose can depend on a question form, a conditional particle, and a proposed omitted clause together.