When somebody uses “but,” it means everything before the word isn’t true. If he truly believes it, he does not need to qualify it with an explanation. He should just state, “It would be.”
As I said, he answered it better than I thought he would. I was pleasantly surprised in the second video, but I did have low expectations. (I used ‘but’ there, but I didn’t mean to imply that everything before it wasn’t true - dang I did it again...)
Too bad it wasn’t good enough for you.