With current mode that now implemented, it would be very tedious work to switch the vpn on/off, because it would be pain to enter the website adresseses to exclude from vpn.
It would be much more simpler, easier dan convenient if VPN can be set to working in Blacklist Mode (every sites using vpn, except websites on the list), which is as current state; or in Whitelist Mode (every sites not using (bypass) vpn, except websites on the list).
It would be best and wiser to have Whitelist Mode (every sites bypassing vpn, except sites in the list).