Not letting your friend take chaos armour is not nonsense. It is very important.
I don't think it would be that easy to push Mortus off Heinrich. She is perfectly willing to ignore Klaus to keep a grip on Heinrich. Sure it would result in her getting a few punches but whatever.
People can be very strong when they are determined. Your wrists and fingers are very strong and given that Mortus isn't as strong as an ox it is in here wrists and fingers that her strength lies.
I think Max will be bewildered by this situation.
It is likely I would say.