The reason Billboard was concerned about “Ordinary Day” not getting airplay in the US is simply because the song hasn’t yet been added to US radio playlists.

“Ordinary Day” is “going for adds” on US stations on April 16th. The song is being categorized as “Triple A” format (major artists), so it by all means should get some mainstream attention.
Thanks to Jr for the news.

Source: FMQB