I agree. Several times I was surrounded by GT1 cars performing dangerous manuevers. I personally didn't have a problem, having survive each of the encounters without any sort of damage with two exceptions, both of which were apoligized for.
But some examples... The straight and then slow left hander followed by the right hander after the chicane: Once as I was making a pass on a GT2 car that went wide so I could go on the inside, I suddenly had a GT1 car barrel through between us on the right hander turn, tapping both me and the GT2 car to do it (I heard a tap, I wasn't effected, then I felt and heard a second tap). At this point in the race I was pacing pretty slow because of engine damage, which is how he blew by me so fast, but when I'm ALREADY on the curb, about to touch the grass, and someone hits me trying to get past on my right, somethings wrong... But both me and the GT2 car continued along, so I ignored it.
Several times on Spectator as well, I saw cars go 3 wide into T2. I'm pretty sure I saw one attempt to go 4 wide, which I just thought was odd. It was a mixed class combination most of the time, two GT1 cars and a GT2, or visa versa. But going more than 2 wide into that turn is not only dangerous, but it slows you more than is worth it. But people did it anyways.
All in all though, you must admit. For a 3 hour race, there wasn't that many incidents. Especially considering it was a mixed field. But then again, this was my first league race, so I may no know what I'm talking about