They Don't Make It Easy

Last night's episode of BSG was the best in a while, and it's still unpacking itself in my head. But I had to keep ignoring a couple of worldbuilding elements that threatened to leech all enjoyment of the ep. It is so very hard for me to take their 20th century medicine in stride. An FTL-capable society has such bad medical tech that one of a wounded soldier's first concerns is whether or not he can keep his leg? As I tried to set that aside, a brand new worldbuilding WTF moment hit: A society whose religion is based on Greek mythology has no concept of a river one must traverse to get to the afterlife until Baltar babbles about the One True God as ferryman? Really?