Taking a minutes silence at a funeral is basic manners and common sense and shows a mark of respect for the family of the deceased.
This was a football match with no family members in attendance, so I ask again, who did you think you were respecting?
There was only one reason for the organised minutes silence at televised sporting events etc. and that was an attempt to show the world that the whole nation is united in its grief and wishes to show its 'respects' to the Royal family.
Well guess what? the whole nation isn't and doesn't. Accept it.