I mean wasn’t this to be expected? Shouldn’t this be more accurately titled a “confirms” not “detects”? (Not calling for a HN title change I’m complaining about

I mean wasn’t this to be expected? Shouldn’t this be more accurately titled a “confirms” not “detects”? (Not calling for a HN title change I’m complaining about the original article title) Even if they weren’t pumping and Nord Stream 2 was only full of nitrogen filler gas, Nord Stream 1 would be full of whatever was in the pipe when they turned off the tap.