It’s important to always be aiming for more in terms of representation.
But it’s equally important to realise that not everything has to reach a standard of perfection to be valuable.
Some better indicators of performance would be “improvement of the show/writer over the course of a few years” (because always seeking to improve is important) or “representation compared to the average” (because it’s important to push boundaries and be brave in your choices). I mean obviously representation isn’t quantifiable, but it would still be possible with enough discussion to determine those indicators.
And any improvement or any representation about the average would be a good thing, with significant improvement or significantly above average would be an even better thing.
And the idea that if the representation is not as good as the very best available/imaginable that means it holds no value is complete rubbish, and we need to stop using it.