I agree and disagree.
Some people are very sensitive in reaction to carbs, both simple and complex. I agree that it is all about balance. It is true that low carb and no carb isn't conducive to bulking. I can build LBM on a TKD, not the same way I can on full carbs of course.
No carb and low carb is to get shredded not really to keep skinny. I am getting very lean, but I am definitely not skinny, nor am I huge. And that's the way I like to be: very lean with good size.
When bulking I maintain 90% of my carbs are complex. I'll consume dextrose sometimes post workout, but have been straying away from simple carbs post workout. Only time I really eat simple carbs is when I am cheating.
I feel that maintaing 90% complex carbs while bulking for me leads to building the LBM i want and staying very lean.