You're spot on about why I want MB Up Venom to be safe on block.
The 2 from the 123 string not whiffing is certainly a fix. Not being able to be parried while trait is active seems more like a buff than a fix in my opinion. He can ignore interactables and other things, but he's still able to get parried. How does that make any sense?
The input for Air Snatch being changed is just a personal preference, not something he necessarily requires. I wouldn't say it's a fix or a buff, really.
But thanks for responding and actually asking why I wanted a certain change.