I don't remember the Queen looking angry either. I took a look at the funeral footage only the other day. She looks solemn, nothing more, nothing less, IMHO.
I't.
The Press had their own barrow to push and diversionary tactics were probably felt necessary by the editors of The Sun and others. After all, some papers and magazines' editors had received hate mail and death threats after Diana's death.
Some Tabloids did go on the warpath, like the Murdoch Press. Others didn't and I can't remember any of the more serious newspapers or TV current affairs shows doing so. I think many in the media kept their heads down.
Yes, as others have said, feelings were raw, but the idea that the whole British population and Press was up on their hind legs braying accusations and hatred towards the Queen and Royal Family is just not true. (Charles is excepted in this. I did hear dislike expressed towards him, and in some ways his popularity has never recovered.)