IT's probably a factor too that when a train gets stopped by a frozen switch, it's still easy to evacuate passengers to a station building nearby, as opposed to a train broken down on the open line; hence the more numerious switch failures earn less news space.

Winter chaos in train traffic - Stockholm News

One train stopped for several hours in Östegötland yesterday while the 700-800 passengers where without food or electricity. The toilet tanks onboard are also reported to have been full. The stop was due to an electric wire that had been torn down. The passengers were later evacuated to another train which later was affected by a failure in a security system and the passengers had to evacuate once again. Shortly after, another train hit an ice bloc (!) on the rail and broke. At other places trains stopped due to frozen switches.

_{*Lunatic*, n.
One whose delusions are out of fashion.}