Sounds great to me. Why not manufacture plastics designed to degrade at increased rates in the presence of those enzymes? If turning plastics into compostables was easier, it might keep them out of the oceans.
The dense compostable plastic cutlery must demand even more processing, and/or higher heat in the compost pile. Recology’s compost piles outside of Dixon are absolutely massive, mid-size hills unto themselves. They must get pretty hot in the middle.