Another consideration here is that today's modern LSA and VH reg kit planes have more fancy gear by way of flight instruments than most basic older Airliners, that alone would entice hapless VFR pilots into non VMC at the drop of a hat! We are fortunate that our WX is generally far more benign than the States where freezing rain/snow etc is a big factor in VFR flight for many accidents! An IFR rating is one thing, having the plane to deal with such WX and remaining proficient is another!
There will always be accidents attributed to poor pilot judgment WX related or not, just a fact of life in the bottom end of the aviation sector!