I'm sure that definitely contributed. But I think another big thing is that with the advent of the internet, artists don't have to worry about censorship as much.

Back in the day, you used to discover new music through the radio. At least in the US, radio does not allow for curse words to be broadcasted. Sure, artists will often have both explicit and clean radio edits, but some just don't bother and make one clean version instead.

Now that many people listen to and discover new music on platforms like Spotify, YouTube Music, Tidal, SoundCloud, etc., people don't have to worry about censorship as much.

I could be wrong, though. It's just a hypothesis. Maybe it was solely rap/hip hop and not much else!