vpnspeedtest.org probably only tests download speed but doesn't state it clearly. I use one of the listed vpn-providers and the upload speed of it is heavily throttled in a saw-tooth manner from 0,2 Mbit to 1.2Mbit, nowhere near the 50Mbit that vpnspeedtest.org lists for my hometown & PureVPN. After my ISP worked on their network, I got a new ip-address and PureVPN initially limited upload to 2Mbit, but the next day it was back to the saw-tooth behavior.
It was mere chance that I noticed it at all. I normally don't (consciously) pay much attention to usernames. "GOOGLE CEO" could reply to me and I probably wouldn't notice it so the disclaimers are a nice addition, IMO.