Lol, true. That's why I posted the link with the lawyer's answer because the case is similar to yours. I mean, my mom has to speak to our lawyer so maybe I can ask her to sneak in the question about CSPA lol.
I think your parents will be fine. My parents got approved this year without any problems. My sis also got married and adjusted under 245i... that went really smoothly, also.
You're welcome and good luck
(I think Ianus can always confirm or correct.)