Its japanese for you. Neither is wrong. Practically in original Shigaraki said that someone got caught but didnt say who. Personally I think it was about himself but that up for translator to pick how translate this.
She reverts time on particular object. And I dont remember it mentioning its neccessarily needs to be living one. In case of Deku by using 100% Ofa he continuously was breaking his arms and she continuously rewinded him