1- there is a difference between being wrong and being fraud. Einstein was wrong in a paper claiming that gravitational waves are not real (he was convinced later it is). He did not fabricate anything in this work. He did not invent equations, made up observation data ...etc.
2- You are talking about conclusions and belief. Here is the problem, there is a scientific method. If you want to draw conclusions, then you have to follow that. You provide evidence. If you think this is fraud because the conclusion doesn't fit then you need to argue with better models/data or interpretation but not just based on final result that you don't like.
If you believe that everything contradicts flat earth is fraudulent then you are basically making up stuff and you don't have proof and this is defamation not science.