I think the Kreuziger case scared them, Froome's too. I think the cost of litigation against the richest athletes (and teams) could blow the entire anti-doping budget. And if such a rider was suspended, but the case overturned, the suit for damages could be enormous.For years the UCI has demonstrated its unwillingness to pursue biological passport cases when there's even a tiny a chance the defender might mount a proper defense or win a potential trial. I wouldn't be surprised if values that would have tripped the wire ten years ago were being ignored now. I don't think this explains everything by itself, but it might not be a coincidence that antidoping has pretty much vanished from the forefront of public discourse compared to what it was like immediately after the Armstrong debacle. I wonder if there are up-to-date statistics on the yearly number of OOC and biological passport tests in the last decade?
Then it's far safer to use the passport to guide targeted testing.