I just blew thru Praetoria with a Psychic/EA stalker. I definitely didn't have an ACC issue.
I'm tempted to run thru with your setup just to see, but I do suck at playing dominators.
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Ok, saw you weren't that deep into Praetoria, so did a quick check and ran thru Praetor White's arc from level 1 to 5. (hit five turning in the arc)
Ran a Elec/Savage Dom
Level 1: Dominator_Control Electric_Control Tesla_Cage
Level 1: Dominator_Assault Savage_Assault Call_Swarm
Level 2: Dominator_Assault Savage_Assault Maiming_Slash
Level 4: Dominator_Assault Savage_Assault Vicious_Slash
Swapped out Athletic for Beast Run, and had Throwing Knives, but didn't pickup any other START vendor powers. Also, nothing slotted.
I did go thru inspirations, but just as they dropped and only once had some real issues where I thought I would get defeated and that was the Inspect Grav lab missions at the end where you deal with more ambushes with no support. Even then, may have dropped to 30%. Just swapped my hold around, and domination came up in that last fight.
I did miss, but looking at logs, lowest chance I had to hit was 77%. (Not counting my helpers, they had lower chances at times)
If I do a basic count, 173 hits, 17 misses. (That should strip out the Officers help that one mission)