A Varanus bitatawa lizard ? Wow!

According to the catch line of the National Geographic article: "It has a double penis, is as long as a tall human, and lives in a heavily populated area of the Philippines. Yet somehow the giant lizard Varanus bitatawa has gone undetected by science until now."

My question is how could such a giant, cool lizard exist without scientist knowing they were alive? Well, they lived in trees  According to study team member and biologist Daniel Bennett of Mampam Conservatio "They spend all their time high up in trees, more than 20 meters [66 feet] above the ground." 
Long known to Filipino tribal hunters, the monitor lizard was identified as a new species in 2009 via its DNA, scale pattern, size, and peculiar penis, a new study says.
So all the locals knew about this cool lizard, but we did not?  It seems it is related to the Komodo Dragon; the one we've all viewed before and thought Wow what a big lizard.

So they are both huge lizards, so what  else is similar or different?
"Capturing both types of lizards was crucial, Bennett said, because it allowed the team to inspect the two monitor lizards side-by-side and detect subtle differences that can help determine whether the animals represent different species.
One particularly revealing trait was the double-ended penis common to monitor lizards. The shape of this reptilian feature is unique to each species."
 According to Benett the reason for not finding them sooner is"few reptile surveys of the mountain forests where V. bitatawa lives" have been taken. So in other words no scientist have had reason to study in this area of the rain forest do far.
What good consequences are the result of this finding? I think the best result is the simple knowledge that new species exist on this planet. Mush study remains available on this planet especially in the oceans that exist. This discovery opens up still remaining prospects of new adventure. And according to this text:     

"The process of science is a way of building knowledge about the universe" to "constructing new ideas that illuminate the world around us." New scientific knowledge may lead to new applications. For example, the discovery of the structure of DNA was a fundamental breakthrough in biology. It formed the underpinnings of research that would ultimately lead to a wide variety of practical applications, including DNA fingerprinting, genetically engineered crops, and tests for genetic diseases. Potential applications may motivate scientific investigations. For example, the possibility of genetically engineering bacteria to cheaply produce cutting-edge malaria drugs has motivated one researcher to continue his studies of synthetic biology.  New technological advances may lead to new scientific discoveries. For example, developing DNA copying and sequencing technologies has led to important breakthroughs in many areas of biology, especially in the reconstruction of the evolutionary relationships among organisms.