Given that he rates Vyrpr above PIA, when Vypr have had clear incidents of doing enough logging to identify which user has done something [1][2], and PIA do no logging [3], I'm not particularly inclined to trust this analysis on the basis of which app is more "fun" to use.
Disclaimer: I used to use Vyrpr, when I found out about the logging, I switched to PIA, which I use with Tunnelblick anyway instead of their app. Furthermore, I can only really go by what they say, as I don't have inside access to their systems.
[1]: https://www.reddit.com/r/torrents/comments/17g53i/if_you_tho... [2]: https://www.goldenfrog.com/copyright [3]: https://helpdesk.privateinternetaccess.com/hc/en-us/articles...