They DID watch it, and my friends DIDN'T think it was great. Just because YOU think it's the best thing since sliced bread, doesn't make it so, and your opinion doesn't actually make much of a difference to me. I DIDN'T like it. That's my opinion. I don't expect everyone to agree with me, but I know 1/2 a dozen people without even having to think about it that DO agree with me.
As for Babylon 5, while there may have been elements of religion in it, it wasn't rammed down my throat the way BSG seemed to keep doing. That, and the plot line kept me interested through the entire series, something BSG failed dismally to do.
And finally, yes I do have a problem with religion. There's enough religion in the news on an almost daily basis that's an excuse for people killing each other. I don't need to see in in programs that are supposedly classed as 'entertainment'.
If the OP hasn't seen the show and wants to, that's up to him. He may like it, he may not. I just posted my opinion on the subject matter, which is all it was .... MY opinion.