That was on WWL - that was the first thing they did, drive piling in there.
I don't think they have to worry about it.
I'll take your word for it, but they must have moved the equipment out of there quick because I've been looking for it since they started showing the breach repair ops and haven't seen it. It had to be darned quick too. That's a big hole.
If the piling is in, the fill can do the job. If not, it can't, it's that simple.