This seems like what the article suggested. The issue then just becomes that not everyone has the time to do side projects and some of us are lucky enough that we really enjoy what we do for our job, so even when we have spare time we still work on the company project.
While I agree with you, I've learned no company will stay as loyal to you as you are to them. You always need to plan ahead to fend for yourself. And having SOME kind of side project (no matter how small) is always advised, imho, for future employment.
