I played in three different church bands and two other Christian bands over a 15 year period starting back in the mid 90s. Been away from it for 8 years and recently have started listening on the radio when i’m driving. It all sounds like it was produced and mixed by the same person. There are no distinctive differences between artists who might as well be the same three people singing every song.
I don’t know if that is the current trend or the choice of the radio station. It has lost it’s soul and reminds me of the scripture about God’s displeasure with being lukewarm.
Amy Grant did an interview once where she condemned the Christian music industry as an orthodoxy that wanted all of the music to sound pretty much identical. She said her album “Heart in Motion” included several pieces that she’d originally wanted to release as Christian records but the record company steadfastly objected because they weren’t the right style.
So it’s not just you noticing this.