The hydrocarbons in the plastic are (in this instance) practically inert. The problem here is the plasticizers that are used to keep the plastic film flexible. Those are what are dissolving in the EA, and many of them have hormone-disrupting properties. A further undesirable complication is that once the surface of the plastic has been leached of plasticiser it becomes brittle and starts shedding microplastic fragments, so the rinsing method will just lead to a different type of problem.