It has not been common knowledge, it has been an accusation pushed by Derren Hinch and denied by his partner of 28 years.
Just because someone starts a rumour, and someone in the media with a reputation for saying anything to create controversy shouts about it, doesn't make it fact.
I don't know one way or another and neither do you. The people in the best place to know have denied it. Even though Bev is quite open about his extra-marital activities she says that he was not a wife beater.
Just days after his death is not the time to trumpet unsubstantiated claims.
And no, I'm not easily astounded, I just like to think the best of other people and when people say things in a public forum, whether true or not, without caring about family and others who may suffer because of it I am understandably dissapointed.