About what Alastor said and generally about "difficult moves" (eg: JFs based on speed or on timing or even other complicated moves like SS/CS) I can see a point here.
However, there are so many different cases of various JFs in SCIV that it gets somehow confusing on how they should treat them in SCV.
On the one hand simplifying JFs would make them easier to use for everyone. However noone can deny that "mastering" some very hard moves gives a completely different taste of satisfaction and visual pleasure for both the player and anyone that watches it.
For example (since it was mentioned), what do you think would happen IF Ivy's command throws got a more simplified input?
Easier to come out of course...
However, it wouldn't surprise me If they nerfed the damage and/or range of these throws since they would be more spammable (aka easier input). Is that a good thing? I think that these command throws should remain as they are. Or just make a JF version much MUCH stronger but very hard to do. But then we return to the start of the problem, because people will always want to "master" the hardest move whichever one it is.
Another example would be Setsuka (that I consider to be probably the hardest character to master in SCIV). She is very strong even without some of her JFs, however, If someone is able to perform her JFs whenever needed, in a very succefull rate, she becomes a monster. And to me, that makes a huge difference between various players.
Of course some of you have a point also. Because there is always a turn-off factor whenever a player feels that cannot get the most out of his character.
And then in SCIV, there are also some "unecessary/weird" cases of JFs that I don't even know why they made it like that...
Some of them being:
- Yun's 8K

K:K (or something like that). More damage and taunting...
- Raphael's 33K:B. I believe it wouldn't hurt anyone If the normal version had the JF's properties.
- Tira's various JFs. Ok I'm aware of the changes of some properties of those JFs, but I feel it's a bit of a joke.
- Ivy's 5-hit JF. Either give properties like SC3 and before or don't, but make it REALLY easy If you want it to be like SCIV.
- Zasalamel's JFs. Could have better reward...
And the same can also be applied to many other characters' JFs, but not on Setsuka for example (and maybe Cervantes) because she gets rewarded very well, If you are able to do them.
However, I must say once again that JF difficulty is a bit complicated matter. And there are many different opinions on what should be easier/harder/riskier/rewarding/not rewarding/etc by many different players.