I think I'll just accept that symphonic metal isn't my thing. All the songs I've heard from the genera have this very similar sound to it, being unknowledgeable about music I have few words to put to it but I can describe it somewhat jokingly as 'pirate metal'. That aside, although I do like a few screams in my songs, depending on how the song goes, the whole growl singing the entire song never really caught me. It always feels best with buildup, as sort of a release of tension or show of resolve or something like that. That being said the instruments aren't played poorly and even doing a breif scream is hard (or so I've heard) so managing to do a whole song that way, I can't discredit it.
I guess if I were to put it into a normal person's sentence: I'll respect it but it's not my thing.
Might be innapropriate for the boards? Not outright explicit, I guess the first few verses themselves speak for themselves though.