I agree with you about this week's guests.I think what has driven me crazy this week is how the Amy Schumer and Denis Leary interviews were such bland, standard pap. Louis CK's interview at least felt like they were getting at something personal, but the interviews have always ruined the show for me.
Sadly, having read some quotes from Stewart as to why he's leaving, it feels depressing: the world IS getting worse and it's draining, that's why I stopped regularly watching the show a few years ago, so I can't even fault him for going.
I definitely won't be watching the new version.
End of an era.