I won't be posting anything before BBCP 2.0 since that isn't as relevant.
Not all game centers are sponsored and have the resources to stream regularly. Not all players go to events either. So sometimes for some characters it is necessary to make do with older footage, learn and practice hit confirms in training, and ask players when possible if you're not able to go to game center.
There's no shame in learning to play completely from Training Mode. It works for a lot of top players for a lot of different games. Obviously you would prefer to play against other people to learn real situations, but spending time by yourself is extremely valuable and necessary.