I searched this site because a sudden rise in traffic to our site, and especially my article which you shared above, came from here. This community doesn't seem too promising considering all the bourgeois and imperialist myths they believe about the PCP, but I'll stay here and see how it goes.
The PCP was not a cult like Jim Jones's group was. There's a clear difference between a party working to liberate the people in a place where most parties turned electoralist and capitulated to the state, and a government that has turned bourgeois rather than simply being "slightly right deviationist". The US "improved people's lives" for quite some time because that's how development works; China could have continued on the socialist path with a planned economy and worked just fine, just as the Stalin era saw the most massive improvement in development for the USSR, but the bourgeoisie seized power and reversed that trend. The PCP was not a "random guerrilla group"; it was a revolutionary party with support from the oppressed masses.