well, you were complaining about DBS shield strenght - bi-weave + 2 booster result in 25-30% less shieldstrenght compared to 3A + 2 boosters. and it is more about the "critical" shieldstrenght you want to have, if you take on bigger ships.
beside that - i can understand why to run bi-weave + booster on ships with fairly great shieldbase value - i run this on my FDL for exampel, because it reduces recharge/revive time greatly (!), when you turn off the boosters. on a shield weak ship like DBS i would either run no boosters with a bi-weave (so your shield comes back on fast), or a-class shield + boosters (because once shields are down, they are down anyways...)