I think it's more a case of they can't locate/can't be bothered to locate missing videos.

Nik Kershaw's 'The Riddle', for example, was on my playlist when I got to program an hour of rage in 2010, and I was asked to choose another video, because they couldn't find it.

But then it aired in late 2013 when Kim Wilde chose it as part of her guest programming.

I also had Sabrina's 'Sexy Girl' on my list, and they didn't air it, but it was aired in mid-2013 as part of the '50 Shades of rage' special, and again in a later Mardi Gras special.

Video clean outs in the past must be partly responsible for missing clips. I think pop clips were more likely to be thrown out over an alternative music video. I also would love Belinda Carlisle to guest progrem Rage. She does regular tours of Australia and is one of my favorite pop acts of the 80s. If Kim and Cyndi can do it then my fingers are crossed that one day Belinda will also.