Another solution to this would be to not have the text be part of the button, instead use an overlay to put it on top of the button user widget and set the text visibility to “Hit Test Invisible”.
This way changes to the button still affect all of them but the text is separate. Of course the drawback is that the text is not styled from the button so you still have to do that manually.
Example Hierarchy:
(I know this is an old question but it still comes up as one of the first results when googling this issue so wanted to help out people that are still having these issues)