fewer reviews for discovery
(I've suggested ideas to increase the number of reviews, but Allmusic doesn't seem to be interested in doing so.) To be selected for a review, Allmusic's criteria are being tied primarily to pre-release buzz. So its criteria are favoring commercial music styles, heavily-marketed albums and established artists with a large fan base.
These criteria disfavor eclectic music, indie labels and new artists who aren't being heavily marketed. When Allmusic used to review albums in the past regardless of pre-release buzz, I could discover many albums (thru Allmusic's reviews) that didn't receive coverage elsewhere. For example: an archival compilation of a niche cultural music that was released by a specialty label. As Allmusic's reviewer described it:
the music you always knew existed but had no idea where to look for.... This is not merely a novelty record -- though if it were it would be the best one ever -- but a bona fide collection of field recordings of some of the weirdest music ever produced in America.
I miss discovering reviews like this, about a musical tradition that I had no idea where to look for. This album was the second volume, which seemed unplanned because the previous volume hadn't been numbered at all. The previous volume had positive reviews, like Allmusic's, that likely helped it sell enough for an unplanned investment in its sequel. The previous volume didn't have any pre-release buzz, because the reviewer commented: "There's no point in mentioning the names of songs or artists because you've never heard of any of 'em anyway."
Two years after the previous volume, the second volume curated more field recordings for another positively reviewed compilation. This exemplified how reviews benefited albums that were in greatest need of and most deserving of being selected for review. Not only can reviews boost album sales, but reviews can also be a way for your users to discover new music!
If another archival compilation like the Anthology of American Folk Music is released (not a reissue and not repackaged as Now That's What I Call American Folk Music) today, can it meet Allmusic's criteria to be selected for review? Assuming Allmusic's and other influential publications all answer "no", then the archival compilation's musical impact will be silenced.