I have to admit that one of the aspect of Windows updates through the years was the need to make it backwards compatible. It meant that their operating system was alway weakened by their desire to never alienate older hardware systems. Apple has always excelled at this even though it meant leaving some out in the cold. Since they were primarily a hardware company it made since.
But, this is really a bit too far especially when you are considering a codec like Animation which it not only widespread but the default codec in many apple programs. They should at least have a way to rewrap it in the background to make it compatible.