Although certainly 'older' I don't know that it necessarily qualifies as 'vintage' in the traditional sense. Since it appears that there are digital/electronic parts (at least from my very quick google search) I would suspect that any necessary oiling would be done by a service tech.
I have a 10+ yr old Viking that I, too, was told did not need oiling. As an end-user/consumer - no, do not oil...that issue is dealt with when in for a routine service. That said, I've probably only had my machine in the shop for general service (or anything else for that matter) maybe 2-3 times since I purchased it as the original owner. No issues.
I suspect this may be the case with your. Depending on it's last service, it might be worth the $$ to have a thorough dusting & cleaning when you have no imminent projects on the horizon. That's when I take mine in as it's usually up to a week for general service.