Hehehe They couldn't make it work in the episode, but the original script of that Sliders episode featured upside down tornadoes. There wasn't really a logical reason to it; I suppose it was just some kind of random idea to make it "sci-fi".
Playing my own speculative game of 2+2, I fear we may have another level of rip-off in the making. So the Destiny locked out five gate address; and at least one of those addresses was a vegetative world with water that seemed nice on the surface. The address the Destiny marked as safe was a dry, dead, desert world seemingly devoid of water and planet life.
Add the above to the idea that those two characters did not die and we will be seeing them again (likely in a bad way).
And lastly, multiply this by the Stargate staple that we haven't seen yet. Where is the sleeping big bad enemy that was awakened or unleashed through human exploration?
What do you get? The Flood. A parasitic plant lifeform that infects and possesses people in a kind of hive mind; and while very hard to kill, conditions on a desert world would not be conducive to maintaining its organic nature. I think we'll see those two characters again, but they'll be villains. And the little ship that broke off the Destiny? Well, the mortal enemy of the Flood was the Covenant; a fanatical group of aliens who have built their culture on worshiping ancient "forerunners" who also left behind enormous amounts of technology that the Covenant have been able to pick up and use in lieu of creating their own technology...
