Exactly.

That would be a fine motor for a ducted fan... but to run the larger prop, it would have to have fairly heafty coil wires ( which it does not ) to deal with the large amount of current the PROP causes the motor to draw.

In the "glow world", the prop is almost a secondary consideration....

In the "electric world" the prop determines how much current will be used by the motor.

Prop a motor wrong and you blow your electronics.