What I see as a positive was the ability to set the cap over the gusher without the gusher blowing the cap away.
I would assume they can remove and replace the cap fairly easily if they need to replace or inspect the seal, or take another cut on the pipe stub, or whatever.
So I guess I was gone doing stuff for a while. Is the seal already on ? Is it like on the pipe and not being blown off or clogged by ice ? That is very good if so, but prayers need to keep coming. There is of course a fair amount of the black stuff leaking from it, and of course nobody watching couled judge how much.