As I see it, is that the vast majority of Joe Public have no concept of the trans umbrella and that 80-90% (or whatever the stat) retain their penis.
I really think every public campaign / appearance needs to focus on this.
A huge number of TWAW allies are labouring under the old definition of transgender - assume TW have transitioned with full surgery - and I would bet my bottom dollar would do a swift about turn when they realised the new reality.