I understand your point, but is it EVER appropriate to make a distinction?
I mean, one can identify as Transgender and be anything from gender queer to fully transitioned, but can one really be 'transsexual' without some kind of transition? If we meet professionally, and we exchange business cards, one of us is going to have a male name on it. Which is fine, but which one of us is transsexual?
When does a transition mean anything? You may think that you and I are the same, and maybe we are in many ways, but I have had to watch a 20 year career do a slow motion crumble around me. I don't really have any 'old' friends anymore.
My life has been completely disrupted by my transition. So how does the term transsexual apply to both of us? We're all under the TG umbrella, but if we're both TS, then what's the difference?