The point is that a redesign wasn't necessary, it was a good logo with a long and interesting history. But it was redone to signal that they are falling in line with the prevailing ideology of the day.
1. Elitist (who speaks Latin?)
2. Forgettable (show this logo to a student from India and then ask to pick it out of 10 similar coats of arms)
3. Ugly (subjective, but... thick curves everywhere, all caps words with hyphens, 3 crowns?..)
4. Hard to adapt to new global use cases (too detailed to make small, too confusing internationally)
5. many more reasons...