In a previous update of the iOS version of the app, the "View Artist" button would say "View Artists" if multiple artists collaborated on a song, and each artist's profile would be visible. I checked the PC version, and it allows you to instantly see and access all collaborating artists, but the iOS version does not any longer. I am not referring to the Song Credits page. The most important difference between the "View Artists" page and the Song Credits page is that each artists used to be hyperlinked on a single page, allowing Spotify users to visit each artist's page without having to perform a separate search.

I'd be willing to bet that very few people are actually going to search for an artist instead of tapping on a linked profile, which significantly decreases artist exposure. That alone should be reason enough to re-implement this feature.