RE: BITCOIN (BTC): BULL FLAG SPOTTED!

Not trying to argue or question, but I seems to recall from reading online that ABCDE often appear at wave 4 or wave B, and should be in triangle shape, either expanding or contracting. The ABCDE mentioned in this post is at wave 2 and forming a parallel channel, could it be possible that this is one of the exception?
Please keep in mind that I am just trying to learn and not challenging.