Can you take off with your degraded brakes?
If not, then issue is closed. Generally the manufacturer are giving advisory material in order to assess some conditions. So while in flight if the cas message appears then you have to factor you landing; not everybody flies commercial, as a consequence if LDR=LDA in your normal private Ops, it is worth considering another landing spot or you will surely end somewhere not black and solid.
Commercially, if you are dispatched under MEL with a known deficiency on the brakes...hummmmm theory then...you have to factor everything; like fort wet runway 1.62 x 1.15 ( 1.92); if tailwind expecting as well, etc...so your factor of 1.55 is part of the equation. If problem arise in the air, captain decision..LDR with the new factor < LDA.... shall I go ? you are expected to go , will I take off again ? worth looking into the MEL.. Company in the loop and so on.
Private...another story, better speak with the Boss....safe side rarely hurts...