Intermediate cases states of GID would explain a lot
about the current state of gender variances.
People straight in the middle would feel neither
male or female or a mix of both,
a rather strange place to be in current society.
There's also the whole question of somatype aversion
VS needing social integration at various level, which
cannot be easily explained by a binary view of gender
expression. If gender expression is multi-factorial and
thus can exist in subtle variations, then in opens
up the existence of a lot of variety.
Some have a need for a congruent body without social
integration. They are ops, but still living as male!!!
This is one of the strangest for me to understand, yet
they do exist and how can they be explained within
the original TS framework. They can't!
A Complex GID continuum seems to
represent reality better than the original gender theories
that emerged not so long ago. Considering that
this subject is far from being studied extensively by
top notch researchers (often its studied by fringe hacks!!);
there's plenty to be learned about it.
In science, theories need to fit reality or they are
discarded. The initial theories came in the time were
a lot of gender variance was hidden from researchers
and thus not expressed in the theories of the time.
New theories will have to fit reality better.