Google may be the only immediately available source of information someone can get to. The author of this article obviously had nothing to do but sit and play with the suggestion feature and figured he could burn a work day with an article to justify how he wasn't actually wasting his time.
If someone is having problems with chest pains, you can imagine they are getting scared, but it's not like they know exactly what a heart attack is supposed to feel like so they don't want to take action in case they're wrong. Someone who doesn't have insurance for example, should definitely check google for possible symptoms. Obviously if the case were serious enough, you probably would just go to the hospital regardless. However, many cases of heart attack patients actually turn out to be heartburn or acid reflux.
The same goes for the "Am I going into labor" question. Instances of women getting pregnant is rare, but happens much more often than you'd think. The experience of going into labor would be extremely frightening if you had not been expecting it or learning about it several months in advance.
The article seems to be written with an elitist point of view with no actual insight towards real world situations that would bring these searches about. Granted, there are definitely some listed that are stupid, the author could have done a better job finding far, far better examples. Like, "why is there a dead pakistani on my couch?" Although, perhaps if there was one on my couch, I may ask the same question.