The link shows what the present flagship for Bryce is right now....that's DAZ. The flash presentation has no SciFi in it. The present packaging for Bryce is not SciFi.
I agree there is a lot of Sci Fi out there, but like Thunder was saying, it's in the advertising which is driven by the popularity vote.
Another thought I've had as of late....while looking at a wide variety of software & Imagery, there are quite a few programs that now far exceed Bryce in the Traditional Landscape capabilities.
Back when Bryce first started, it was probably the best thing going for landscape, especially since that's what it was originally designed for. As time went on and people have done every imaginable landscape scenario they could think of , they began branching out and using it for all sorts of styles, and one of these being SciFi, is very popular.

Finally I would disagree that Bryce is always associated with or typecast with SciFi.

As of late Fantasy has been making a big comback, and Abstract has been gaining in poularity.

You can certainly see the trends are changing along with many things in this world.
I've worked in the construction and design field for more than 20 years, it's the same there too, and even in clothing fashion. So many things.....another is Hollywood.

So many people.......So many Opinions.  So many Artists...........So many styles.

ICM

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Ockham's razor- It's that simple