WhYYZ
[10] Knight
One thing that bothers me is, how much does execution factor in tier lists?
It should be close to none. Some stuff can be up for debate as using Hilde's C2B loop consistanly on every single character in the game is argubly the hardest thing in the game and personally I don't count it in my list but if I did she'd end up top 5. Or punishing a -17 move with iGDR. The reason why punishing is a lot easier in the game than SF is because you can imput the move and as soon as you exit you recovery frames, you character does the move. That's also the reason why some moves are impossible/really hard to JG. Anyway I digress, doing a DJT is something that takes a lot of muscle memory but it can be done. It also depends which character you're fighting against. Phyrra has a bigger chance of escaping if Apat fucks up then Astaroth or Nightmare. But in the end, if Apat doesn't fuck up it shouldn't matter.
And with the just guarding CE, It's usually not needed to JG a CE. Most of them are -20 or worse.
Are we also going to assume that every move that can be blocked on reaction can also be Just Guarded in reaction
Pretty much, Some characters have a really slow BB. Ivy is a good example, you can just guard the second hit on reaction after you blocked the first one. And it's -13 so it can be decently punished. General rule of thumb for me is: If it's i18 or less it's pretty much invisible. i19>i30 it can be blocked but not JG'd if you are not anticipating it.
Anything slower like 22B From hilde or Astaroth can be reacted to and should be just guarded. Of course there are some exceptions to the rule because some moves are masked fairly well making it hard to react too. I have that with Tira's 44Bh GS. That move is REALLY slow but JG'ing it is just awkward.