That works too.
I wasn't suggesting that anyone modify the vhost directly I'm just making a feature request for a site option that basically says "Hey ISPConfig, I want this entire site to be SSL only".
Having that option would allow ISPConfig to then automatically write that very simple *:80 vhost entry, which not only handles the SSL only part, but also eliminates a full fledged *:80 vhost entry that never gets used but still has to get loaded into memory. This would also eliminate any need for adding any redirects by the user.
Not a crucial feature request or anything, but it would be nice.