MsMiharo
Kuff Bano
Yeah but cassie is plus after the full string.This is obviously me spitballing, but I guess the reasoning is that because B1 is a tick throw, having the opponent guess between b1 grab or b13 would be a bit much. If they guessed wrong, b13 would blow up armor attempts and backdashes without a gap.
Which would be very strong in the corner. I'm not saying that this is definite, but it's my guess as to why it is the way it is.
Look at it this way: Cassie's b124 has had a gap in it for some time, and people still block the full string.