It is not socially acceptable and it was condemned by the press and the public but damage was already done.
As for Heysel i think my research was deep enough to dispute what was in my opinion a bad analogy. I took data from these sites:
http://news.bbc.co.uk/onthisday/hi/d...00/2481723.stm, and
http://en.wikipedia.org/wiki/Heysel_Stadium_disaster