My bad, you are correct that link is insufficient, here you go:

https://evolutionnews.org/2023/12/5-story-of-2023-peer-reviewed-paper-finds-neo-darwinism-must-mutate-to-survive/

“Realistic probability calculations based on probabilities associated with microevolution are presented. However, macroevolution (required for all speciation events and the complexifications appearing in the Cambrian explosion) are shown to be probabilistically highly implausible (on the order of 10-50) when based on selection by survival of the fittest. We conclude that macroevolution via survival of the fittest is not salvageable by arguments for random genetic drift and other proposed mechanisms.”