The first statement stands to reason that no Design is flawless and Developers need to see it at work, used by Players, to make up their minds about what there is to polish about it. Quite clearly nobody cared during Beta, which is why Jade is one of the weaker, less used characters right now. Proof: every Top Player who picked her, dropped her already. Sonic Fox himself said that it takes so much work to win even with Jaded, that there is currently no good reason to pick her over other characters who are Easier to even do Better with.
This fact does not contradict my statement that the Developers know what they are doing - it's simply that in Jade's case they are NOT doing it right now.
BECAUSE, as I said, she's not so popular and because Jaded is doing statistically well enough. Like you said, and like I said too: she can win.
And I do in fact think she could be AMAZING with just a little work. Cassie Cage level of Amazing. Sonya level of Amazing. The kind of Amazing that does not need to get Patched anymore because she's PERFECT. She currently isn't - like you noticed one facet in her design being, as you said, dumb.
This fact does not contradict my statement that the Developers know what they are doing - it's simply that she's not being looked at right now.
A lot of things about her make no sense and are dumb. Like how bad her combo damage is compared to basically every other character, the supposedly worse Shao Kahn included whose struggles are different and not the topic here, I'm just bringing him up because yeah, sadly he's struggling too.
This statement does not contradict my trust in the developers because again, she hasn't been touched in any majorly constructive capacity since Beta.
It does not mean they are idiots or I don't know what you are trying to say, it simply means they are Busy With More Important Things.
If we, the players, draw no attention to the fact that she's taking massive risks and other characters can do so freely against her because of how incomplete she is, she will never be better and I don't know what to say to you if you think she doesn't need to be.
No, it's called "Labbing" a character and having a "Community" with whom you "Break Down" a game. It's not inaccurate at all. I don't know who said you can react to Sub Zero's overhead but like you said, going to the "Lab" and TRYING THINGS (like I asked another player previously who said hogwash about overheads) will soon erase all doubt regarding "Theories".
Then again, you seem to be really knowledgeable and sure of yourself.
Looking forward to seeing you in winners finals in the next major, with Jade!