No, it is not pointless. 

Firstly, the specification only asked for a script that runs with a single number as an input and it is not specified if it should run infinitely and keep asking the user for multiple inputs. 

Secondly, solving a task for a single number can allow for a higher level of abstraction which can aid in problem solving. Once, the we have solved it for a single number, we can easily generalize this to run the same for multiple numbers (either a finite number of them or just keep asking for them endlessly).

Take the steps from above. All we need to do achieve such generalization is as follows:
1. Put that functionality into a function called `run_single_fizzbuzz`
2. Call that function in a while loop infinitely often:

```python
while True:
    run_single_fizzbuzz()
```

Also, keep in mind that although a single number is taken as input. The fizzbuzz **printing** actually runs for all the numbers up to that number in the suggested script from my answer before.
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