Whether you want to admit it or not, Bahiyyih ranking 2 makes perfect sense.
The one pick voting system worked in her favor because she had such a large 1 pick fandom. Picking 3-9 girls at a time made a lot of trainees “filler votes” as in people liked them and had them in their top 9 but those girls didn’t necessarily have a strong fanbase of their own.
They ranked high because when it came to picking another girl of a different nationality, they were the ones people chose as a collective, besides their one picks of course.
So once the voting came down to 1 pick, people could only vote for their fave top trainees and thus we saw who truly had the strongest 1 pick fanbases and which girls were just fillers.
Also a side note: Even if the show was just koreans voting, Bahiyyih would have still made the lineup regardless.