"You're already in my way," Iron Man roared, wrenching Pietro flat against his chest, both arms around him and pressing tightly to stop that vibrating before Pietro shook him apart. Tony was not a fan of this plan in the first place. This was putting Wanda at unnecessary risk. They weren't even allowed out of the house for their own safety and now here they both were, Wanda somewhere with Sinister and Tony bringing Pietro straight to him to complete the set.
That went wrong fast. What was he supposed to do? Hand Pietro off to the Polizia and hope for the best? Tony wasn't a hope for the best guy.