What is the difference between a judge's discretionary decision on a petition for reclassification and resentencing for certain theft and drug possession felonies to misdemeanors?

The difference in the two discretionary decisions is, according to People v. Valencia, that Proposition 47 restricts the bases of the trial judge's discretion to the narrower issue of whether the petitioner poses a risk of committing a super strike. (See People v. Valencia (2017) 3 Cal.5th 347, 356 ["Thus, under Proposition 47 a resentencing court may not deny a petition for reclassification and resentencing for certain theft and drug possession felonies to misdemeanors for an otherwise eligible petitioner unless it finds that the resentencing would pose an unreasonable risk that the petitioner will commit a super strike."].)