I think
@General M2Dave posted about it earlier in this thread. Fate's main footsie tool gets punished by some characters. Making it -7 would make it completely safe and even out his match-ups.
Obviously I wouldn't want it to be an infinite. I said remove the mashable gap meaning so you can't just mash out of 223 everytime but still leave a gap so you can backdash/armor. As of now 223 is completely useless because you can always mash out of it.
I see nothing wrong with Supergirl having a safe low starter where she has to spend meter on to be safe while having a punishable overhead, all while getting low damage. She would be much more viable imo if she had these safe options because right now she is a high risk/low reward character.