My Little Pony: Friendship is Magic - Image #700,076

Perhaps you just discovered a characteristic difference between EG Fluttershy and Pony Fluttershy.

It is possible that they would have differences in personality. After all, they must have lived different lives in these completely different worlds. Perhaps EG Fluttershy was forced to face her stage fright earlier than Pony Fluttershy.

they are technically 2 different characters :P