Their “Spanish for English speakers” course goes all the way through CEFR B2 proficiency. There’s no way to attain that in a year of HS Spanish unless you were in a Spanish-speaking high school, fully immersed. Some versions of the Spanish course (for other native languages) may not go as far, that’s just the one I’m working on.
I got the same message on iOS Safari with no special config or UA switching (just an ad-blocker). I figure it’s a badly implemented feature. But holy shit I thought the browser wars settled out a long time ago and we had decent standards in place, guess we’re regressing back 20 years though.