One can infer that she did become White Phoenix since Claremont made a point of alluding to there being a clear distinction between the colors of the different Phoenix uniforms.
Most people fall into the trap of wanting Jean's Phoenix mythos to be clear, neat, and simple. That's simply not the case. Besides, if she is truly one with Phoenix, what happens to her corporeal form is irrelevant. That is, it has no bearing on her transcendence as, to use Claremont's words, "an entity of pure thought." Of course, her dead body can be used as an in-story and out-of-story ruse to mislead characters and readers, but her body being used to resurrect her does not diminish or put into question her identity as Phoenix or White Phoenix.
And again, you're projecting your assumption and, dare I say, your own headcanon onto Rosenberg's story because you're pissed off he didn't end said story with Jean embracing her birthright as Phoenix. This is petty, uncreative, simple-minded, and not based on anything factual.
Are you being serious here? "The point of the panel...is that she is
hunched"? lmao. ::sigh:: I can't right now.
How about this: Since Jean and Phoenix are one, Phoenix Resurrection constitutes a battle akin to a battle between the id, ego, and superego. Think about it.