OBJ is just an idiot — I would blame him for marring LSU's night; I wouldnt blame LSU for his being a moron.
The Neck thing is dumb, but college students are dumb — e.g. the Wisconsin "eat [redacted], [redacted] you" chant, ASU's hand sign, etc.
Burrow's comments were dumb and he certainly leaned into the cigar thing.
I wouldn't say any of it was classy, but there was precedent for most of it (except ONJ's exceptional stupidity).