I really don't have a problem with horses being downgraded (for whatever reason). Many can continue to have a very useful career at the lower levels and many riders can get lots of useful experience riding them.
There again I also don't have any issues competing against the pros, don't mind children being able to compete in BE classes (against adults) and am not bothered by the new rule which states medical armbands must be worn on your arm and not round your boot....
Easily pleased aren't I?!