That's what it all comes down to. ME. Instead of looking at Terri's case, and considering it on it's own individual merits and it's unique circumstances, in as unbiased manner as humanly possible, you place it on par with your personal situation and project into it your own fears.
It doesn't sound like you married the sleaze Terri did, and you have the wisdom and foresight which comes with age (Terri was only 26 when she "collapsed") to put your wishes in writing. Thus, you aren't likely to find your self in Terri's shoes.
BTW, the legislation the house has written, concerns people who don't express such wishes in writing and therefore would exclude you.
And you only want to look at this situation through the lens of Terri's situation. It's bigger than that. I'm willing to consider how this might affect the entire country. You won't.