Property decorator documentation is inaccurate?

From the official docs about property decorators:

"The return value is ignored too."

But the following example returns a new descriptor, and it works fine:

class Greeter {
  @logProperty
  greeting;
}

function logProperty(target, key): any {
    var value;

    var getter = function() {
      console.log('getter');
      return value;
    };

    var setter = function(newVal) {
      value = newVal;
    };

    return {
      get: getter,
      set: setter,
      enumerable: true,
      configurable: true
    };
}

const g = new Greeter();
const b = g.greeting;

Start with the Property Decorators section of the official TypeScript decorators documentation linked in the issue, then verify the shown property-decorator example and its returned descriptor behavior. Update the documentation so the statement about ignored return values accurately matches the documented example and observed behavior.