Hello, Learning from videos...it has it plus's and negatives.
Can a person fly a 747..from watching videos? Can a person beccome a scuba diver from watching videos? Can a person become a policeman watching videos?
Maybe...but real lessons will always be better....! For learning and remembering our Kata's...this is a great way if it is on a video/disc. for our Kempo techniques...helps build memory.
But to learn to become a Black belt level....there will always be a few people who can do this....but many of you will need assistance.
Therefore...videos are good...has it purpose...and no wrong or right here...because each of us can learn something......Aloha