Does her UK position really matter? She is set to debut with 55k+ between US + UK, that's on par with her UK + US debuts of her previous two albums COMBINED.
She didn't have TV promo performances, official singles that charted or got radio airplay, etc... like her previous albums this time around. She can easily push a track and give it a few UK performances to help the album there whenever she wants.
The US is her biggest market now, they're wise to concentrate on it with the album's first TV promotion this week. Excited to see what songs she'll choose to perform.