I’ve edited the conf file in /etc/route_policy/domain_name/bypass_vpn to insert all 148 ip of netflix and now my esclusion of Netflix streamings is working right! 
The list of Netflix ip is here:
@limbot
you must do the opposite of what I did: to insert the ip list in “use vpn for” after you have enabled vpn policies and unchecked “use vpn for all processes on the router”