I expected stupidity in the process and for it to get dragged out. I was wrong and am extremely thankful that I was wrong.
It's not just a story though, I've already said my piece on why I think that's a mistake. It's also the election machine, that you only inherit some of from the DNC after you're named the Nom. That's a huge part of the primary process. The fund raising and team building. It's why the primaries start 10-11 months before the election, and prepping for even just a half assed run at the primaries takes a few months of fund raising, finding a campaign chair worth their ass, etc.
Kamala inheriting the Biden machinery is why this is so easy. Josh Shapiro or Whitmen would have to be building their shit from more or less the ground up and trying to synch in with national DNC assets they have minimal direct experience. And they would be starting ~ 90 days before the election.