There are definitely different paths into Epicurus, and the more one digs into the philosophy the more one finds, both regarding things Epicurus was responding to and the ways his thinking permeates our world today.
The pre-Socratics were a further and important influence on Epicurus, as well as on SPA, and there's much to be gained from understanding them as well.
SPA do have a grossly distorted impact on today's society, but dissatisfaction with that is exactly what has led many of us on the winding road to Epicurus. So to some extent I think the points that you are making, Cassius, are baked in to Kalosyni's thinking. I'm just getting the sense, which may or may not be correct, that in this particular thread they're digressing from where the thread was initially headed.