How do you see this working out for repeat offenders? Seattle today has a mini-version of this FWIW: We have offenders who have 44+ counts of 'minor' arrests and a felony conviction on the street [1] getting involved in public shootings.
Overall I like the part where folks who have paid their dues get their life back through a measured re-introduction back into regular society (from jail). Even over here, we will need oversight from professionals who have insight into both the worlds who can help with the transition. I don't think commuting sentences by 90% is the answer.
[1] https://komonews.com/news/local/who-are-the-alleged-downtown...