On Aug 6, 2020 you can attend the OC Parks Advisory board meeting and have your public comments on e-bike access heard remotely. Here is when and how. Let's keep this issue and our concern fresh in their minds. 
https://www.ocparks.com/about/commission/agenda

Please join and support the Electric Mountain Bike Association fighting for your right to ride low power assist e-bikes on natural surface bike trails and paths.