Yeah you are right why would I expect any different but, the title did say "World leaders JOIN Paris march" the connotation that join gives off makes one believe that they actually joined the citizens.
You realise there was live coverage even with aerial shots of both groups? They didn't walk with the other group to make sure their safety (of both groups) was guaranteed since it is more attractive for terrorists to kill world leaders.
Well to be fair it's still quite a lot of people. Sure, the media exaggerates (it's not like that's a new thing), but I still think it's quite a sum. If there was one or two leaders from each country, it's still a solid number. Plus the fact that presidents/leaders can't just leave their country like "bye biches Imma be back by sunday". The fact that they went through all the annoying formalities to show their support is a nice thing in itself.
Skip to 4:10 for some interesting tidbits on the politicians' histories.
On a related note, are we able to post video from these websites yet?