XX, without being a pedant
When I say "less likely to crash" I am of course referring to the fact single engine aircraft are not permitted over central london.
That isn't the truth. The rules state "glide clear" for FW over any congested area - so it's a pilot decision. You have 2400ft of altitude available - what is your glide ratio ?
And SEPs aren't permitted over Central London, how do you account for the Reds, the BBMF etc. ? Did you see the Red Bull air race in Docklands last year ?