Science requires systematic observation, measurement and usually variation (often experimentally controlled); and, usually, iterations.
One datapoint outside such a system is not science.
You can’t even necessarily just insert a new datapoint into a pre-existing scientific sytem. The system itself may need to be adjusted, for example to test and account for biases that often occur due to how observations are made.
Science requires systematic observation, measurement and usually variation (often experimentally controlled); and, usually, iterations.
One datapoint outside such a system is not science.
You can’t even necessarily just insert a new datapoint into a pre-existing scientific sytem. The system itself may need to be adjusted, for example to test and account for biases that often occur due to how observations are made.