Ok, I can buy that, but it means that it created a true parallel universe and not a branch in the Prime timeline.
This could be viewed as consistent with the Kelvin universe 24th century officer not being able to survive in the 32nd century Prime Universe.
It’s disappointing in its limitations, yes, but another step in bringing warp-driven travel into a more mainstream conversation and line of theoretical research in physics.
As with Albucierre’s proof, theoretical research always starts with the corner solutions and odd cases to reduce the variables.