To a point, yes. And I even agree with that goal. The problem comes when a device manufacturer allows only their own personnel to work on a device, and then makes it extremely expensive to get that person on site to do the job. Or, as with the current COVID situation, bans travel of their Field Support Engineers entirely, leaving my device broken for potentially months on end. As a Biomed, I could attend training for the repair of said device (and have, for some), and do the repair in-house. That is, if the device manufacturer allows non-company people to be trained. And even that is expensive, and can take months to get.
And before you say a company's FSE is better than I could be, I've actually watched them break my devices worse than when I called for service, and then charge me for what they broke. How is that better than what I could do, given the same training?
"If I do not want others to quote me, I do not speak." -- Phil Wayne