Because the mourning is so discreet.
Quite.
All those people filming proceedings with their little mobile phones are definitely doing that out of sincere, respectful reverence for the Queen.
Nothing to do with an "I was there" syndrome, or look at me "I'm really patriotic".
Patriotic Bingo is needed:
Queued for 10 hours for 4 corners.
Cried while queuing for a top line.
Cried, managed to film the coffin discreetly whilst Charles was standing vigil gives you a full house.