MG Service costs are the same on the website as they are at the dealership, so I disagree with you on that one, I got the same figures from three local MG dealers that MG has on their website, and is the norm in motoring retail, having bought more brand new cars than I can remember, servicing costs have always been asked about at point of enquiry, against what the brand states. They rarely is ever differ. Not in my experience which is rather vast.
I do not see why people are getting angry... the cars are only unsafe if you crash it, in nearly 40 years I have only had one incident, which was not my fault, and I am sure it is the same for the vast majority of owners.
I agree that MG needs to get on top of this sooner rather than later, but if they have only been aware of it for a short period of weeks, they are doing well to get production line cars rectified now, and I am sure that sense will prevail and existing cars will be sorted, if not then a few emails to the DVSA will hurry it along.
Either way, I will continue to use my car as I have, I, do have a choice of cars, but I like the 3, and am more than happy with it, but I am also happy to reject the car should it be found to be unsafe AND MG will not do anything about it !