Can someone explain it to me like I’m 5yrs old.
Why do brehs/brehettes think this is bad?
Bad in two ways, primarily.
One, since Spotify has such a close relationship with the labels (for example, UMG and Sony own percentages of Spotify to this day), this could now essentially become a way to let the public do the research work for any songwriting and royalty claims they choose to pursue. While the likely majority of the music cited on WhoSampled is all cleared, a significant portion of it is not. Sometimes it's just a case of something slipping through the cracks, or a sample being so obscure or reworked that it isn't obvious on first listen. But could be especially rough is that since the goal of WhoSampled is to showcase any and all uses where a song was sampled, a lot of the songs they list out are older songs that aren't immediately recognizable as hits or even having samples, or songs from smaller artists that are maybe just starting out, or have plateaued. With this being a owned arm of a streaming partner to the labels, it's hard not to see a future where their data is used to pursue legal action.
And secondly, as it was before, since it wasn't affiliated with any specific streaming platform, the default was that songs were embedded as YouTube videos, both because it was easy to have a button that skips to the specific parts of the song that featured the sampled element, and because it was free to everyone. At worst, maybe you had to watch an ad or two. Now, the expectation is that users will be directed to sign up for Spotify, since they don't do free embeds of songs.