Basically I'm a SOP taleban so generally speaking I apply airbus procedures, but sit on my sofa' I'm thinking of the reasons and consequences.....
And given they have given you instructions for what to do when you find yourself outside the envelope, it's a pretty safe bet that a test pilot has been there, tried and tested the procedure -and had it approved.
For sure they tried before but they should insert something on the from otherwise I can extend flaps above VFE speed....for sure test pilot did it.