Quote from TolTol:
What happens when the guy in the left seat pulls back too much on take off? Or screws up the flare?
[Unquote]
Presume the above question is "tongue-in-cheek"? But just in case it confuses anyone, it makes no difference which pilot is mis-handling his/her stick.
I agree with westinghouse. In the case of dangerous over-rotation, I see no reason why a brief application of forward stick by the other pilot could not be used. The trouble with Clandestino's policy ("not pressing it is not an option") is that, by pressing the button, there is a risk of over-controlling the stick at the moment you take over. IFLY_INDIGO has raised an interesting point.
But I have not flown A320 for 6 years. You should discuss all this with an experienced A320 base-training captain, as well as seeing what Airbus and your companies say in your Flight Training Manuals.