Dear UpperECAM, if you had continued reading the next sentence, you would have discovered that; "As soon as the aircraft becomes airborne, the system blends into flight mode."
In the case I mentioned, the aircraft was in DIRECT LAW at least until the gear was retracted, (and don't assume the gear was tucked in as soon as the aircraft was airborne), and even if the gear went up immediately and the aircraft was in ALTERNATE LAW, roll control would still be in DIRECT LAW as such, and would certainly feel more sensitive in roll.