I let my PIA account expire after the purchase, but there's a reasonable argument for "any shadowy figures siphoning their info aren't in my threat model."
If you're Joe Schmoe who just wants to not get nastygrams over using Popcorn Time or a tweaked Kodi box pulling movies from torrent sites, you may be a lot more concerned about hiding your usage from your ISP than you are from some foreign government that doesn't care about you. For that user, PIA (or ExpressVPN, or NordVPN, or whoever else is out there) may be a perfectly viable option.
If you're Joe Schmoe who just wants to not get nastygrams over using Popcorn Time or a tweaked Kodi box pulling movies from torrent sites, you may be a lot more concerned about hiding your usage from your ISP than you are from some foreign government that doesn't care about you. For that user, PIA (or ExpressVPN, or NordVPN, or whoever else is out there) may be a perfectly viable option.