Probably?
LOL sounds like somebody doesn’t want to take any chances.
The British atheists have been hanging out with the current Anglican leadership too much.
“Probably”
LOL. You know how pesky those absolute kind of statements are for atheists.
Well, I’d guess it’s stated like that for two reasons:
1) They’re British, and you know that nuanced, understated British humor.
2) It’s impossible to prove a negative. Saying that the existence of a higher being is impossible would be foolish, because, strictly speaking, one can never be totally certain. I am not a superstitious person, and certainly don’t believe in Christian mythology, but I wouldn’t ever state as fact that there is no god for the same reason one can’t rule out unicorns, psychics, or leprechauns.