Nothing to hate. What you say is true. With death not an issue though and the ability to quickly get back in the mission, I have found the build I listed to be effective in STFs. The double A2D1 does give a certain level of TB resist and Kinetic resist.
I ended up dropping cannons on my last couple of runs and slotting in duals to compliment the beam arrays.
Fun to watch a BoP with Fire-at-Will. ... Just saying it makes a heck of a disco light-show as she spins so fast.
(BTW ... What is Klingon for "DISCO BALL" ? )
I always tend to run (2) cannons (1) DBB on most of my builds.
In a STF the Beam BoP concpet is fine as the NPCs rarely complain of the death spiral tactic.
In PvP I do not run a lot or all beams on my BoP due to the personal preference of how I dislike those escorts whom use all beams and then spiral just out of the turn radius to use them against a foe.
I'm a traditionislt and prefer cannons in PvP.
Back in the day when I designed mine, I set my heart on the following setup :
Tac Captain / STF Setup
Front: 4x AP DHC mk XI/XII (Blue) to upgrade to [acc]x2/3 as soon as possible (have accurate captain bonus to get it into criticals)
Rear: 2x AP Turret XI/XII (Blue) (to upgrade to [acc]x2/3 as possible
Engineering : Neutronium Alloy, Plasma resist armor, EPS console (Don't need RCS due to high man. of ship)
Sci: Universal Assimilated Module, Field Generator mk XI, Plasmonic Leech
Tac: 3x AP Damage Boosting Modules Mk XI
Option Two Selected
Commander - Tac
Tactical Team 1, Attack Pattern Beta I, Cannon Rapid Fire II, Attack Pattern Omega III
Lt. Commander - Tac
Tactical Team 1, Canon Scatter Volley I, Attack Pattern Omega I
Power to Shields 1, Aux. Power to Structural Integrity Field I
Lt. - Sci
Transfer Shield Strength 1, Hazard Emitters II