Caveat: when the article mentions the “dominant hand” and “non-dominant hand” they really just mean “right hand” and “left hand”. These knitting styles do not adjust to your personal handedness. So I guess you can read it as written if you’re right-handed, but if you’re left-handed this was not written with you in mind.
Portuguese style looks really interesting! I learned to knit after learning to crochet, so I’ve only ever gotten the hang of continental.