No, see the next line of code. (```this.text = text;```)
https://github.com/Catrobat/Catroid/blob/2214dcfa7857281dc3cac15f410532bd0e3045d3/catroid/src/org/catrobat/catroid/content/actions/SpeakAction.java#L76

Nevertheless, I closed the pull request for now and will reopen it until some missing parts are added.