If I was one, I wouldn't get licensed.
As a licensed engineer, you accept liability for the health, safety, and wellfare of the public. Also, you have a certain legal obligation for negligence.
If I write error-prone code, that causes a business down time, does that mean I am personally liable? As a licensed engineer, I think it does.
Maybe licensing software engineers will be a good thing. Forces the person to verify code more to avoid those troublesome conflicts, lock-ups, and crashes that cost users dearly. Can you imagine all the lawsuits as corporations sue individual P.E.'s for negligence based on error-prone code, or code that allowed hackers or viruses to infiltrate?
I'm all for licensing for engineers. I think licensing software engineers will force code to be better written based on the personal liability for bad code. I also think that industrial exemptions will be rampant for software engineers and hardly any will bother. Where's the benefit in licensure compared to the liability?