Let me tell you that it can go much too far in that direction too. We have repulsing examples of especially young criminals that get off very serious crimes with not much more than a slap on the wrist.
What I'm saying is its not the evidence-based justice system to blame, its the root causes of crime that need to be addressed, if that fails, changing the justice system is addressing the symptom not the cause. That is what the united states is doing, resulting in inhumane treatment of prisoners and the highest prison population in the world, not something you really want to advocate for (at least in theory if you aren't conservative of course).
In Sweden we have people getting out of prison after running people down with their cars and killing them after having already committed dozens of violent crimes, only to continue committing crimes as soon as they get out.
After a while there’s not much else that can be done but lock certain people up for good.
What about crime that's on the rise because of a relatively lenient rehabilitation oriented criminal policy? Most of the crime I've seen perpetuated in Germany and Scandinavia, especially the more gruesome ones, are often perpetuated by second-generation immigrants "left out" of a system where they don't even want to actively take part in - many of them want the benefits of being part of a welfare state, but it's only a minority of those who want to contribute to it. Case in point, migrants specifically from Africa and the Middle East are a net negative to the Danish welfare state, according to the government's own stats.
Before rushing to downvote me, note that I used to be one suc migrant to Germany yet I could see that the system in place isn't sustainable. Most governments such as the Scandinavian and German ones have resorted to hiding their numbers to conceal the failures of their policies (all in an effort to bring cheap labour).
Source for above assertion: https://link.springer.com/article/10.1007/s00148-017-0636-1