From your original post, you're talking about stalling.
There are two ways to define stall speed - one is the traditional "Vmin" approach, where basically you just read the minimum speed achieved in a stalling manoeuvre, the other is "Vs1g" where you determine the maximum lift coefficient during the manoeuvre and then define the stall speed for stable 1'g' level flight.
The 'Vmin' method generally gives lower speeds, because often the aircraft is at less than 1'g' at the point of minimum speed; consequently, aircraft using the 'Vs1g' method often are permitted to use lower speed factors when determining operational speeds (V2, Vref) as a function of stall speed.
Therefore, I'd say that
when one talks of 1G concept on an Airbus
then its a discussion of the use of the 'Vs1g' methodology to define the reference stall speed, Vsr, and there is no implication that 1'g' is any kind of capability limit.
Hopefully that's the correct interpretation of your original post.