From my perspective I agree that adding bits and pieces from other styles adds to the armoury. A good student never forgets his roots but there is so much to learn out there. As a Wing Chun master once said to me "we've all got two feet, two knees, two fists, two elbows and one head" - we just use them in different ways.
Osu
Trevor
Trevor Gilbert
("If I had to select one quality, one personal characteristic that I regard as being most highly correlated with success, whatever the field, I would pick the trait of persistence. Determination. The will to endure to the end, to get knocked down seventy times and get up off the floor saying "Here goes number seventy-one" - Richard M. DeVos)