I agree that a VPN service implies it's protecting privacy, but let me nit pick a bit: the "private" in virtual private network is not about privacy, it's about a network with a private IP space, the virtual part is that it operates on top of public IP space.

With that said, anyone could make the assumption that private means privacy here, and most common use cases for consumer VPNs are for privacy, so, I guess it really matters that they are explicit what they service does, and I think the description above is pretty clear.