Stations and labels don’t do research on brand new songs. Over the years, the music industry has tried to come up with a way to research new songs to determine which ones to release and promote… with no success. Stations generally do not do the present day equivalent of “call out” until a song has been on the air several weeks and been played a certain minimum number of times.
Everyone, from label to station, flies blind upon the original release. Even the sources that show online use can’t tell who is listening with needed precision.
On the other hand, after 7 weeks of online exposure, a station can test against its own listeners. Even if a song has big stream counts, that does not mean your listeners care about it.
In some cases, a PD will go by the axiom that “what you don’t play won’t hurt you” and skip a song. You can always play it later, but nobody tunes out over a song you don’t play.