We don't have to pay faux tributes to everyone who has died. There are many people that had questionable histories that don't deserve our respect, and people are justified in celebrating their passing. I'm talking about serial killers, child abusers etc.
There are people we have personal negative experiences of. There are people whose political views are different to yours or mine. There are controversial figures, distinct from evil people. Nobody expects these people to receive universal approbation when they die, but they have loved ones, and they don't deserve to have their deaths celebrated.
When Sir Alex Ferguson dies, it won't be "jelly and custard time". It will be the time to be respectful of a family man, who thousands loved. I for one, don't like the man. I can't respect him for his football achievements because there is compelling evidence that his coercive behaviour created unfairness towards United.
It will be a sad day for his family and for the United family, and it will be sad for them. But it is never the right thing to celebrate the death of someone like this. I hope he will rest peacefully, and I will quietly abstain from the inevitable media adulation, that will raise him almost to the level of statesmanship or royalty.
I'm not sure if this is an adequate response to your expressed views, but I would advise anyone that in situations like this, if they have nothing positive to say, then stay silent.