Yes, my ex experienced a lot of anger when on the pill and got significantly better when she stopped both by observation and by her own reflection. I've also met a few other women who reported similar side effects of this particular type of birth control pill (progesterone and estrogen). However, she had amazing skin when on it, and it got worse when it was discontinued. I didn't mind it as much as she did however. XD
The whole premise of the study however, seems kind of shaky. From the whole MHC selection (did they phenotype their entire study group? How would they blind it etc?) I guess the tipping thing makes sense if women on birth control become super irritable. However that wouldn't be the first metric to come to mind for use in a study.
Edit: Just took a quick peek at the link, I'm really not too keen on anything published on psychology today. One reason being the lack of citations to follow up on for verification. For fun and giggles, it's great sometimes. Interesting discussion topic nonetheless and definitely applicable here.