Most PIA users pay yearly, so it's completely understandable to feel ripped off I think. However, this is really just a matter of a few big providers implementing stricter geofiltering, blocking datacenter IPs, etc. Nothing PIA could do about it though, it's a risk you take if you understand how these things work.

Many of these same providers have just blocked VPN IPs and you can still use a cheap VPS to circumvent though. Some nice docker openvpn containers around...