Seeing as how no one else had bothered to test it, I decided to stop the misinformation and begin formally testing to see what exactly the new element is capable of. The final results can be found on the Enemy Vulnerabilities page and the Damage: Laser page.
Basically, Laser is just like freeze except that it does not slow enemies or do bonus damage to shields. It is slightly better against Corpus than Normal damage and is definitively worse against Grineer. Against Infested, the two are effectively equal.