British media likes to undersell any and all protests, they typically take their photos at the end when there's a much lower number of people and then knock at least half off the number of people who attended. Oh and if one person brings a joke flag/banner then you better believe pictures of that from different angles will be all over the place rather than any pictures of actual protestors.
I wish I could find that one photo of about 30 photographers crowded around the one guy with a bloody nose at a 100,000 person protest, but google is failing me
Pretty sure it was him, but a photo from further back so you could see way more photographers. Literally every photo from the protests that day had this guy in.