People can do the run cancels into b12 so unless you are using armour faster than like 8 frames you get it broken. When you respect that AND the fact your opponent might have the execution to jail it once in a while, you really should NOT be pushing buttons in this matchup. In a ranked match online maybe but sitting down in a tournament match with a competent DF Liu Kang, its not worth the risk at all.
Its dumb and a little strange that the patch didnt take the blockstring away but theres no mixups apart from tick throws so its just some chip "pressure". Pokes and armour are way too risky unless you know your opponent, nobody likes to hear it (because its not a fair situation) but getting hit by the end of the string is a better idea than trying to poke, and thats saying something.