>Private from your current ISP, sure, but not from Mullvad
being private from your local ISP is what 99% of people care about because they use VPNs to send copyright infringement claims to /dev/null and watch netflix, not to smuggle nuclear secrets to Iran. It's privacy in a practical sense that's useful to people. If I go from an untrustworthy ISP to a trustworthy one I've gained privacy, there's no need to be overly academic about the term.