Hullo BRP Central. I am glad Cthulhu Rising has support out there, but I agree that BRP should have a non-mythos sci-fi setting as its 'standard' sci-fi setting. With regard to whether my setting would work stripped of its Lovecraft influences, I have polled the visitors to my site and the majority say they'd play in the setting whether there was a mythos element or not.
Cthulhu Rising just looks like hard sci-fi. I mean, we have artificial gravity and such. It is only hard sci-fi up to a point - we bend the rules for dramatic purposes. With regard to Cthulhu Rising being high-tech and/or shiny though: I'd disagree. Star Trek is what I would define as high-tech and shiny.
I don't actually own a copy of 2300. I have played it, and I liked playing it, but the only version of Traveller I own is the classic era with the original setting - the little A5 black and red books. Free Trader Beowulf and all that...
It's all down to personal choice in the end. A lot of people enjoy playing Cthulhu Rising, but it's not for everyone, and that's cool by me.
:-)