Normality is a broad but pretty well-researched subject and i think it's safe to say, belief in horoscopes and other unsubstantiated supernatural phenomena ain't it.
In that way, "normality" is flexible: if you change your behavior in a consistent way, your new behavior is normal by that definition. You didn't become "abnormal" you simply redefined your normal.
Now the article goes on to mention that you could also define this relative to a larger population, etc, which supports your point - but the very fact the headline definitely doesn't align with your claim shows that this is not as straightforward as you make it out to be.
But I for one feel everybody around me finds "weirdness" unbecoming. I find it to be an inescapable reality that people will care about you less and not want to get you for any manner of tiny deviation (e.g. as an extreme example, just if you said "beep" outloud every 10 minutes this would be reason enough for I think half of the population or more to not want to associate with you)
In my friends case though, I think what scared me the most was he became very unclear/metaphorical in speaking about even basic topics and didn't seem to realize how much trouble people had understanding him.