Do you happen to know the DPS gains of the 2p and 4p for the other 2 specs? :OBased on my rough simulations, once you take into account the ICD, the default LnL proc rate ends up averaging out to about 12% chance per tick over the course of the fight. With the set bonus, it goes up to about 17.12%. In my T14H simulation for SV the bonus amounts to about 1306.95 dps.
I'm unclear on your complaint. You do know that the weapon damage portion of these shots includes AP scaling by default? The weapon damage formula is avg weapon dmg + RAP / 14 * 2.8. Many of those shots also have a weapon damage multiplier which affects the amount of benefit you get from the weapon base damage and from the RAP. Historically they have had 2 separate pieces of RAP scaling in the shot formulas (one tied to the weapon damage including the RAP and one separate), but they have simplified them. They haven't changed the shots to no longer scale with RAP.