This idea is very good. Technical people are driven by facts and if you can prove something objectively, then you're much more likely to get them onboard.

But don't feel too badly at having a good idea shot down. This happens to many clever people. Unfortunately, politics rule decisions in many companies. And as a new guy in this type of situation, you may have to build up some credibility before people will take you more seriously and possibly stick their neck out for you.