While that's a good point, Jade never really talks about it in that sense. She doesn't independently say "history class in school should be less UK-/euro-centric" she only ever talks about it in the specific context of "I don't know this thing that I've come across in the specific country that I am in right now and so the school system is at fault". There's only so much history class could teach you, even if it talked about different topics and focussed on history in other countries (especially with the depth and complexity that these topics need and deserve), especially if you're only taking it until gcse
To be fair, language transfer/linguistic interference ("translating" from your main/first language to the language you're learning) is a normal part of language learning. I honestly feel like her Spanish got better compared to the last time we heard it! And I do commend her for posting a video like this, knowing there are mistakes and her pronuncation isn't great and there are scenes where it's awkward and uncomfortable because she doesn't understand something. I still think the way Minerva works is shit for learning languages and if she had studied in an actual class and at an actual brick and mortar uni her Spanish would probably be much better by now but learning a language is always hard, even if Spanish is one of the "easier" ones (for English native speakers), so it takes guts to post yourself making so many mistakes. And for once she's not acting like she's fluent after 3 days of learning!
The video chapter names like "a muy rico dinner" and "casual magic en español" are kinda cringy though imo