If your shop ‘eyeballed’ it and didn’t bother to get out the specific tool for checking and fixing a bent hanger .. well, you need a new shop.
And yes, it could be still bent, or there could be something going on with the cable.
Agreed on all accounts. There could be a whole bunch of problems really. I know this isn’t what you wanted to hear, but I’d take it to a reliable bike shop that (a) uses proper tools like a derailleur hanger alignment gauge and (b) [i:sjexs9jz]test rides your bike before giving it back[/i:sjexs9jz]. [That is just as unacceptable as eyeballing. Your shop should know things work differently in the stand than under your body.]