Because you can take a half-dead Zamia furfuracea with half a frond surviving and nurture it into rising from the grave:
And into flushing nicely:
It will stay in the "ICU" part of Jurassic Park until the fronds have all fully opened. I don't know if it will do the Cycas wibble if it gets moved while flushing, but why risk it on such a gorgeous cycad?
(That's rainwater stained by some compost in the bottle by the way. It occurred to me while posting this that a bottle of yellow liquid looks well dodgy...)