How the fuck would the "language excuse" be xenophobic? There's literally nothing in there that implies that people from Brazil are stupid or worse? English is a really difficult language to learn. Plus, add in the fact that you're on a team of zoomers/millennials that are going to speak in a version of English so broken that it's not going to resemble anything you learn on Duolingo or a textbook, and they're going to be speaking really fast.
Even Sacy who has really good English still chose to keep his twitch in Portuguese when he joined SEN ( I don't know if it's changed now).
Also for FNC, most of Europe learns English alongside their birth language at a much higher rate then in other continents, because they need to use it the most.