It's one bar. That's not ghostwriting, no matter how any Drake stans try to spin it. And like u said they're not even cool, so who's more likely to put themselves out there right now for a feature from the other artist..Jay who has no credibility issues and no album or project to promote, or Drake who's entire career is in question right now to the hip-hop heads?
If anyone wrote anything for anyone that bar was from Jay and was the reference, I'd bet my life on it, not Drake doing a whole verse just for Jay to do one line, a verse which is awful by the way and I like Drake's music but objectively speaking it's an awful song and verse.
Oh yea the song wasn't even released as "ft. Jay-Z" which means Jay probably didn't even give permission to use his name, which would also offer a better explanation as to why there's a new version just days later with no Jay.
All the slobbing in here....