https://www.hrc.org/blog/the-precarious-position-of-transgen...
I'm not sure what your first comment is meant to imply, but I suspect you might be suffering from confirmation bias if you think that passing isn't realistic.
I'm surprised that my understanding is already out of date or was wrong in the first place. Maybe 5 years ago or so, the rule I learned was that cis people should make no distinction between trans or cis, so as not to separate people into groups. I figured that extended to everything, which is why we don't make a distinction between cis and trans in things like sports or bathrooms, because there should be no distinction to make.
It's all a bit confusing. I'd like to get it right, but there's a lot of change happening and it's hard to keep up.
Some trans women are as you describe, preoccupied with passing and going stealth, especially for safety reasons. Many aren't.
You can speculate on if the term is gonna go away, but right now it's the best adjective to describe trans people. It's not offensive or a slur, it's literally the community's chosen language.
And you're right, sometimes it's better to be nice and gentle to people who are wrong. I won't be mad if you pop back upthread and correct them gently. We can do one of those good cop bad cop things.