right, i've seen that done. basically you blow it out and catch it with a rag, instead of picking it up with a microfiber after loosening it.
the steamer i have seems to do that alright, but doesn't quite have the same pressure capabilities as the bigger ones that can blast it right out.
my guess would be you need something with 60psi or higher pressure to get it to fling out like that, otherwise you would have to use the brush head with cloth on it to draw it out decent. that did work well for me though
process for my cheaper steamer was spraying carpet with an apc or carpet cleaner, doing a light scrub after let it dwell, then using the brush/fiber attachment to pick it up