They are doing what most labels do. They will release a song every so often up until the album drops. Then if you purchase the album on iTunes all you have to do is complete the album with the songs that weren’t released yet.
She has the good ones out too. They are most likely hoping I hope goes number one on radio and a album will be released about the same time. Probably in a couple months.
This song is going to be big in 2020. No they shouldn’t move on. It is selling like crazy. I am so proud to see her becoming a star. Country charts do not move fast.