This is definitely true. You’ll probably have to experiment with different techniques until you find one that works the best for you, then customize it to your liking. 
Remember that having LD’s doesn’t just come down to techniques. The whole idea is to recognize that you’re dreaming, and one of the best ways to do that is to become aware of your environment IRL and have that awareness carry over to the dream state so that you’ll notice when something is not quite right. A lot of techniques are just methods to help achieve that awareness; mindlessly performing a technique probably won’t net you great results.
This recent article by Robert Waggoner explains it well, and there are other posts around the forum with a similar message.