I don't PVP with my shade. Well aware of the weaknesses there.
PVP however, is only the smallest part of this game, concerning a minority of people. If you can get a bit of legup there from time to time, fine. But Shades are very highly functional in PVM. These changes you want would make it so completely utterly retarded.
Thus its a bad idea.
No matter how much you want it to be otherwise, theres more PVM shades (and PVM everybodies) than PVPer's.
Prepare to be disappointed. I seriously doubt your bold red text is going to get you what you want. Why do you think Means isnt answering the question. Its a question with two wrong answers.
You can shout about it until you're blue in the face, and hell, you probably will. Not going to get you your answer though.
Rather than combined spirits, I'd like to see shades to maintain their current dynamic. Thanks to the way non shade defense is, and has been for some time, perhaps the various perks that are the start of the problem could/should be adjusted to be as effective as they should be.