I thought it was interesting to get to know that somebody is really thinking about, how to help international students and how to make grading their work more fair. It's a good thing in my opinion and I can definitely say, that it helps if you are told which typical mistakes you make and how you can eliminate them. It is not at all motivating to get a paper back which is all red and only points out the mistakes you make without mentioning the positive aspects of your writing.
As far as I know we do not have a campaign like this at German universities, however the reason for that might be, that there are by far not so many international students. However it would definitely be a good idea to think about something like that in Germany as well, as it really helps students to stay motivated and keep on going!