A321
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Training / Qualification
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Aircraft; Human Factors
A ROW/ROP alert triggered in the cockpit during landing roll-out. Stable approach; stable landing configuration. FO pilot flying; I was caught slightly off guard when touching down. While in the flare the wheels of aircraft seemed to just hover slightly above the tarmac; not making contact. Nothing seemed out of ordinary until I realized aircraft actually touched down at the end of the landing zone paint strips. At this time I began normal landing procedures...pulling thrust to reverse while applying brake pressure; it was right in this moment of thinking that was a pretty nice landing; when ROW/ROP alert came alive.  I should have cobbed throttles and [gone] around however; I believed that the thrust reversers were already being deployed therefore I jammed the brakes and continued stopping.Everything about this flight was so routinely normal that nothing should have occurred.  In reflection though; I find that more prudence should be placed on how we fly our differing fleets. [At my base] we tend to fly more A319's. Therefore it would be best if we focus a touch more on landing flaps full; versus config 3. In the 319; ref speeds are routinely low....low speeds; low weights etc. I believe had I not been a robot in thinking just use config 3 cause that's what we always do; focus on approach speeds/available landing distance for the A321. This flight for example had a Vref of 150.  Had I used full flaps I think there would have been no issue; even with the tail wind landing.
The reporter states that the runway length was 7800 feet and that there was a slight tailwind and he did float through the touchdown zone; but does not feel the alert was valid. He also believes that it came too late to be complied with. The system is new to the Airbus fleet.
A321 First Officer experienced a ROPS alert during a flaps 3 landing that floated to the end of the touchdown zone. Believing the reversers are already deployed; the landing was continued and heavy braking used to stop.