I believe what is meant is that you don't always have to have the most perfect option.  You sometimes have to take a less perfect route but it will still get you moving to where you want to go.

The "perfect" route would be either to be a good enough artist to do it all yourself or to have money and pay for a really good artist to do it for you.  Since many of us can't do that, we either attempt to learn, or we do what we can with images found online.  In this case, the google search "may" have issues at times, but at the least it could be a good enough start to get you going.