Didn't catch the show myself, and I don't really listen to a lot of "new" country these days.
I do agree with you, BM 69 - Garth Brooks is/was an amazing concert performer. I saw him back when I lived in Seattle in the '90's and it is by far one of the best concerts I have ever been to in any genre of music. He played 6 encores and would have kept going, but there wound up being a riot outside the arena (unrelated to the concert - there was a festival going on in Seattle at the time that deteriorated into a gang situation).
Overall, in the country genre, I'm a fan of the big-time classics like:
The Man in Black
I also think Lyle Lovett is an amazing singer/songwriter, although he's not mainstream country. I've seen him in concert a few times, and he is funny and a great entertainer.