Having found out a little more about the certification program, I have strong reservations about the motivations for this. I don't love this direction, hopefully, with feedback, they will adjust course. We will see.
Given how many horrible vulns in some of the other mentioned brands above, I'd still buy Synology because their CVE Disclosure and speed in which they patch, has been good in the 15 years we have been buying and selling Synology.
As an MSP, it gives me reasonable piece of mind.