Google is free to use any metric to score their ranking. The difference is this one they are telling us about.
HTTPS is also used to upgrade connections to stuff like HTTP2 and SPDY which give a substantial improvement to speed, which in turns improves satisfaction. So it makes sense to priotise https sites.
HTTPS is also used to upgrade connections to stuff like HTTP2 and SPDY which give a substantial improvement to speed, which in turns improves satisfaction. So it makes sense to priotise https sites.