I don't know if I'm being unreasonable as it obviously isn't a competition but as a school in London I would have thought something should certainly be done for the latter regardless. Seems even more bizarre to remember one and not the other more closely related incident.
It's an event that I, like most Londoners, (and maybe people around the country) have deep personal emotions about and as 52 Londoner's died I think they deserve some recognition.
I know they held something last year.
Did your schools do anything?