"after pressing in the new lower control arm bushings"
Sounds like they were free before you pressed in the bushings and now they are tight? If so they were not supported properly when the bushings were pressed in and got bent.
I agree.
However when installed and adjusted the pivot does not move in relation to the arm. It only moves when making adjustments.
If the bend isn't effecting the arm's geometry but the weight of the car can move the adjuster you can still use them. I have seen them really tight and still work fine.
