As the statute doesn't limit the post-sentencing review of restitution interest charges, and the most logical reading of the circumstance is that a petition arising from changed circumstances is unlikely to happen at sentencing, the court erred in ruling that it had no jurisdiction to modify an interest obligation after sentencing.
Extensive review of statute's structure and history.
https://www.opn.ca6.uscourts.gov/opinions.pdf/21a0185p-06.pdf