Unjust? What's the injustice here?
A text analyzing labeled your text as xx% and xx% that, there is no "injustice" , you haven't been affected by their decision, you haven't suffered any damage, nobody cares what a text analyzer thinks or what the results are and I don't see why you would either!

But I can tell you for sure why some will get their posts marked in such a way, it's mainly because they try so much to write down a post like it's fucking essay that you're getting a mark on every single phrase that they end up with one huge wall of text that spins the same idea which stops looking like being normal text written by human and more like some machine. Let's not even mention the 3-4 liens quota, some simply force themselves to make that number of words characters, and of course when you try to stretch a 4 words phrase into 100 it it stops sounding human.

Oh and another thing, seems like all those analyzers dislike a text made out a ton of short phrases, don't know if that's something that ChatGBT does but this might get you a clue on why the high score.

And now going to check the above shitpost of mine with that detectors and:

Where is my cookie?