gear knob removal on vectra c 2.2 sri

So did I understand right just pull the gear knob ???? And it will come off

Then for what the two metal thinks in the instruction ???
pulling just wasnt enough so 2 poles just under the knob, strapped tightly together then 2 people lift n it just pops off, but have a heavy towel or something over it as the knob flies off.

could go through the windscreen.