The rumor is that staff is being pushed to restore service as fast as possible after a problem is "solved". EU push for green transport and privatization means lines were opened to competition, increasing the number of trains compared to some decades ago when only one operator used them with less trains than it does now. IIRC currently the lines have two operators (3 in some places?), meaning that traffic more than doubled. Those in power do not want the service to have more delays. And instead of updating and maintaining the infrastructure, Adif stresses it even more, both in the technical and personal fronts. Thus the accidents. But nobody at the top resigns, blame low level scapegoats instead.

The Iryo train was stopped and unable to restart, because it's safety system did not allow that until the signalling issue was corrected. The AVE was commanded to move again like normal (200 Km/h or more). When the Iryo reported to be stuck, all the trains in the line should have been notified to stop once more, or go at line-of-sight speeds (40 Km/h). Both options are bad for delays. Current news is that five minutes after the Iryo call, the AVE rammed its back at 160-200 Km/h.

CEO of Iryo company complained 3 weeks ago about LZB being problematic, their trains taking a long time to recover connection. Safe but old, he said. It should have been replaced by ERTMS by 2024-2026.