That would be considerably more work. Could make a fun Thanksgiving weekend project, though.
It should fare fairly well, at least for the most common sequences. We have detailed what VT features we support on the website[1]. Some things that stand out that I know won't work are blinking and double height/width text.
I cringe every time at the name "torture test". Prime95 uses it too for example. Is it really a torture for a software to demonstrate each of its features? Or for my CPU to work at near 100%? So insensitive.
It’s certainly torture for whoever is trying to implement all possible corner cases to ensure VT-100 compatibility.
Not even DEC got it right 100% of the time.
Apple’s Terminal and xterm (the original X app) do a commendable job at that.