All VPN Sites block list does not include Mullvad

I was bored yesterday so decided to enable block 'All VPN Sites' in the new Bypass Prevention' feature. I could have set this any time as a stand alone rule but never needed to because we don't have bad guests or horny teenages to subdue. My VPN provider is Mullvad and to my surprise I could access it's website and tunnel out using the Mullvad app. Upon checking it turns out that Mullvad's domain is not in the All VPN Sites domain list. Is that an oversight, or is there a valid reason for the omission?