[Ezra]

I think this is an eggcorn/mondegreen for “all of a sudden”.

Seems weird for the WSJ.

[voxic11]

It's a quote from a source so at most I would expect a "[sic]". Thinking about it more... it seems like an intentional mistake by the speaker to demonstrate the sort of verbal flub the quote is about. In which case it's pretty clever and a "[sic]" would kind of ruin the subtlety of the joke.

[mhb]

I think you're being too generous to both the speaker and the WSJ, but maybe that's too cynical.