I'm Blue daba dee daba die said:
She did that because she didn't want to harm vision
Yeah, just imagine if she was trying to actually harm him.
Thing with Wanda it's that she doesn't has actually that much of combat scenes. Being Thanos' one the only close to an actual fight, as nearly none of her fights involved taking down her foe nor had that much of a fight aspect.
Going by AoU, her role against avengers it's mostly toying with their minds one by one instead of taking them ahead, and if we go by her fight against ultron's minions, she equally uses both blasts and her Telekinesis to either retrain or tear them apart.
In CW, the first offensive use that she does with her Telekinesis is retrain a fodder to toss him against Falcon and knock him cold. In the fight in the Airport she's playing as support to stop Team Cap from getting hits and occasionally dropping stuff to keep Team Iron Man at Line.
In IW she was focused on protecting Vision from the Black Order instead of defeating them, albeit by near the end of the movie what she does is outright toss Proxima to an engine to kill her.
Point, however, is that it's fairly common for Wanda to use her Telekinesis, even more than actually shooting blasts, with the distinction that in this occasion she has no boundaries, as SBA means that Wanda is both willing to harm him and focused on Thor outside of every other aspect.