Paul Keating made his comments ("Souffle does not raise twice") in mid eighties regarding the then opposition leader Andrew Peacock, who lost the election and was subsequently rolled by his own party in favour of John Howard. When a year or two later on it was reported that Peacock was preparing to challenge Howard (who was then inexperienced as an opposition leader, did not present himself well and made a few PR howlers) for a leadership reshuffle, Keating was asked if he was worried about a possible Peacock return. Keating was a master of acerbic wit, and summed up Peacock with that sentence, because the late Andrew Peacock was seen as more froth and bubble with a careful image than as a real politician with balls.
I could harldy see Oscar Wilde, Mark Twain or Voltaire thinking "bloody hell I'll slay 'em with this souffle gag, they'll be rolling in the aisles!" somehow. I suppose you had to be there.Context is everything.
In a nutshell I don't think Doloras's use of it was my cup of tea. In fact not my bread and butter at all.