Maybe the reason the pattern says to use a stitch holder is the number of stitches involved before you're done. It could be awkward to have them all hanging onto the working needle as you continue. I guess it it gets cumbersome enough you could move the stitches in waiting to waste yarn. And at the same time....yeah, I need one hand, eye, and half of my brain to keep track of one set of instructions and the other hand, eye, and half of my brain to keep track of the other. It's hard since I don't have half a brain. Don't forget, red before yellow will kill a fellow. You do have poisonous snakes in Aussieland?
I should never overestimate my basic arithmetic skills.