Tim Cain does seem to like the show, for what it is. He is focused on positive things about it, with genuine enthusiasms, and carefully avoids to say anything bad about it.
There are lot of OG fans calling him shill and sellout for not going berserk on the show, for even going to premiere (admittedly, Bethesda and Todd Howard did a great job of legitimizing their show by inviting one of the creators of Fallout that they are sure will not crap on it), but, as an OG fan, who watched most of his videos and knows he doesn't shy away from telling bad things, I just think that's completely silly talk, since there are quite a few bad things he could've said.
If you ever watched his numerous videos on making of Fallout, and everything about Fallout, you know quite well where he stands on lot of the things that are wrong, not only with Bethesda's vision of Fallout, but even with Fallout 2, that he spearheaded and then quit (along with Leonard and Jason) due to mismanagement on the side of Interplay. But (as I said in previous post), he is an wise old man, as people of his position and long experience usually are, so you need to read between the lines for a lot of things, and that takes skill and exposure to such people to learn it properly.
Anyway, as someone who imagined Fallout movie or TV show ever since original came out, this "bright and funny apocalypse filled with dark punchlines and bursts of ultra-violence", to quote IGN, is not what OG Fallout was, and what Fallout will never be for me. As a new IP, it would be quite decent (and I keep recommending it to people unaware of Fallout), but that's the exact same thing I had in my head after FO3 came out - fairly good RPG, very shoddy Fallout.