Don't know...class action suits have been started by all types of folks. Remember, those celebs who got hacked via phishing sued GOOGLE in a class-action lawsuit (i think or suit of some kind) because Google left the links to nude pics on the web for a few days instead of instantly deleting it. Do you think that these uber rich celebs wanted money from Google?
Don't know much about that Google suit, but sounds like that is about protecting privacy. While your theoretical suit for gold Apple Watch not getting support after 5 years is just about money.