The religious stations are SW holdouts, so they are a convenient target because many nights they are the only thing on the air.
Whether one likes it or not, the reason they are the only thing on the air is because the religious broadcasters still appreciate SW as a communications medium -- an appreciation many of the international broadcasters simply don't have anymore -- as made plain by the lack of VOA, BBC, VOR, Radio Nederland, Radio Canada, etc. outlets on the Shortwaves.
It's sad that HF broadcasting has come to this -- a lack of value to so many networks and countries that used to value it as a means to reach people. The religious broadcasters still do, and make a big deal about it on their websites. I'm not an aficionado but I'll sometimes tune in. It's better than hearing empty SW bands and static, which is where HF broadcasting may be in another 15 years or so. Soon enough -- we'll be DXing our neighbors' RFI.