The last issue Movistar had was Jaime Rosón where they were on the receiving end of the same problem that Lazkano has provided for Red Bull. They got Lazkano from the same source so they're trying to pass the buck over in the same direction and the years on the report allow them the chance to viably do that.
Largely because often the guys who jump up a level and then get busted on the biopassport are caught because they aren't able to maintain the kind of blood levels they were using previously while under higher levels of scrutiny. Examples would be like Jonathan Tiernan-Locke or Giovanni Carboni from Continental to ProConti or WT, or Jaime Rosón and Franck Bonnamour from PC to WT. Caja Rural themselves have been on the receiving end like this, with Alberto Gallego back in the day, although that was a straight-up positive test before he could flag the biopass. Or, hell, someone like Alex Diniz when his team stepped up from Conti to ProConti and had to become biopassport compliant, he couldn't keep his blood levels at the level he'd doped up to as a Conti rider when he just had to be within the legal limits at isolated tests. Similarly you have those riders who suddenly stop delivering when they have to be under biopassport compliant teams, like Danilo Celano.
The problem for them is that, of course, unlike Tiernan-Locke (or guys like Pecharromán, Popovych, Celano etc.), it's not like Lazkano suddenly dropped off at Movistar. Rosón had not yet delivered much of great value at Movistar and they could claim adequate distance from the violations. Cobo likewise gives them that option, because he was dreadful in both of his stints with the team, the first time admittedly heavily influenced by his mental health struggles and the performance difference was beyond the level of clean/dirty. They can't do that with Lazkano. Rosón signed for them after winning the queen stage in Croatia and Turkey and finishing on the GC podium in Croatia, on the podium in Coppi e Bartali and top 5 in the Vuelta a Burgos, results which outstrip what he managed with Movistar; by comparison Lazkano's dramatic improvement came under Movistar's watch. His best results with Caja were a stage win in the Volta a Portugal and a 15th place in the Tour de Luxembourg.