If it wasn't a serious issue and if it didn't keep occuring then there would be no need for this:
http://www.atsb.gov.au/media/4115273...11-050_no4.pdf
or this:
http://www.atsb.gov.au/media/36438/P...viours_adv.pdf
If pilots become complacent about the dangers then I imagine in 5 years time there will be another report about VMC into IFR. If you want to fly in cloud go get a PIFR rating if you want to live to fly another day and you are restricted to VFR then don't push into IMC. Simples!