I think people are reading too much into the horses. One of them was bloodied as it had crashed into a vehicle (a double decker I believe). Horses are naturally spooked so easily, London is very busy and hectic so it’s no surprise they were running riot around the city. Anyone who has seen the guards on their horses would attest to the fact that they’re constantly on edge (the horses not the guards) as they usually have blinkers on and can’t see around them well, so the noises and crowd spook them easily.
I am open to being completely wrong of course, I just don’t see this as anything of concern at this moment as there is no evidence…
PS: Big Ben never works, it’s always under construction or being mended so if the wrong time is shown i doubt again, it’s a cause for concern.
What is definitely concerning and increasingly odd is how Kate and her kids have been out of the limelight for months.