Makes you wonder what goes on in the cockpit sometimes? Are the pilots in a hurry, are they lost, is their mindset on another task than taxi'ing (checklists and so on). Fortunately it's not a common thing to have a runway incursion (if you look at it compared to the number of aircrafts that actually hold short of runways, or even get a clarification that they were actually allowed to line up/cross when they get close). But it's nasty anyway.
Maybe we need spikes at the holding points, so they get a flat tire if they cross
Hopefully someone talked a bit to the crew/controller afterwards, just to make sure they were okay.