Cause I can speak a bit of Portuguese and I'm expecting to hear some God damn Portuguese!
It's not a flaw. I'm just being nitpicky. But it would actually show how cunning the Portuguese would have to be to speak Castilian, Portuguese, English, and Japanese to exist in this world. They're kind of getting written off as side characters to the Englishman, but they actually are a focal point of global trade at this point in history. If you're Portuguese in Africa at this time you have to communicate with people from senegambia down to Angola around to Mozambique. If you're Portuguese in Brazil, you have to speak with the indigenous and Dutch. If you're in Macao, Gochin, etc. They’re not just Bible thumping Jesuits or side kicks.