Niggas knew Diddy had ghostwriters since that first album dropped and you saw those liner notes. Same for Ma$e (DMX wrote one of his joints on the first album). Niggas knew that Cube was writing most of NWA’s bars, too.
The difference is that those were either groups or producers, meaning nobody gives Diddy or Dre credit for being dope rappers. People do give Drake credit for being a great rapper/lyricist so it is relevant whether or not he’s writing his own raps. That said, this is just Meek saying this. It’s established fact that Drake actually writes for other people (eg Alicia Keys, Rihanna) and when he first came out he was allegedly writing for Weezy, so I find it a little hard to believe that he’s not writing his own shit.