Ohh I think I know what you’re talking about. Like this? Not wrong in the sense that all of these mean “I don’t eat sushi,” but rather wrong in the sense that the question specified a specific one of the 3 possible translations of that sentence.
I can’t answer why the Bunpro team wrote the conjugation lessons this way (I’m not sure who to tag - @JamesBunpro maybe?). Maybe some learners find it helpful to see where their answer should be situated on the casual to politeness spectrum? It should only affect the conjugation lessons though, I don’t think any other grammar points have 3 different options shown in the example itself.
The Bunpro review answers always appear the same way they are shown in the actual lesson. So when you study it from the lesson page and scroll to the examples, it will look exactly the same as above, with all 3 tiers in each item. I agree in this case it probably isn’t needed to see those when you submit the answer though, and might be more confusing than it is helpful.