The band were a bit worried about playing that show. They knew they didn't really fit, but apparently Testament asked for them specifically.
I'm in the larger proportion of the fans, to be honest. It was a thrash bill. Everywhere else on the tour Onslaught played that slot and went down a storm. If Onslaught weren't available then they should have been replaced with another thrash band. If it had to be an English band because of logistics then Evile would be my preference if available. I'm sure they could have found someone to appeal to Testament fans.
I found Anaal deadly boring. Every song, even if it started differently with a good riff or rhythm, ended up being the same high-speed monotony. It was like listening to 45-minutes of the same track with occasional pauses for chat.