Idea: Texts shall have an angle of their rotation in the properties palette, hence we could change the rotation of multiple texts in one go (choose all texts and change the angle in the properties palette). Furthermore this property would be very handy if the text needs to be rotated by eg. 2° (as the snap would hold it back at zero until approximately 5°).
Profit: Beeing able to rotate multiple Texts around their centre (or perhaps basepoint if it would be available) in a very short time.