No. Indicators depend on the appliance's operation and supply. After an interruption, stored heat may remain even if the display is blank.
What the observation means
Hot cookware can also transfer heat back into an induction surface. The zone should not be touched to verify an uncertain indicator.
A useful next step
Keep the area clear and allow safe cooling. Follow the manual's warning about residual heat after isolation. If the indicator behaves differently during ordinary use, record that for assessment, but do not use its absence as permission to place plastics, paper or hands on the surface.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.