Na.
Two things changed in the MU and those changes are HUGE.
1. BOTH versions of lightning can now be jumped AND punished anywhere on the screen (although its much easier doing this to MB lightning). Pre-Patched, this was giving her hella problems. She basically had to eat damage to get in. This is no longer the case.
2. KF can now sit on a life lead. Pre-patched, even when she had a life lead, she had no choice but to go in, giving up her defenses. This is no longer the case.
Another big, but not huge change is the fact that any dive kick that isn't done from max distance actually gets punished now, and a dive kick from max distance gives us a 50/50.
Like I've been saying, BA's core gameplay is still the same, and the BA MU is still the same. KF just has better options now, and those options are good enough to make it at least 5-5.