I wouldn't dream of saying you are wrong ... In this game a lot of things happen by fluke that are unreproducible but genuinely happening.
I have High Sierra running the Web-Drivers and OC 0.8.0 on a GT 1030 Pascal card and what was working perfectly before is now hamstrung without hardware acceleration. (I have subsequently swapped to a Dell RX560 GPU instead).
There are many "magic" cures being touted by men in funny hats selling strange looking medicine in old-style bottles ... but a lot of it is just placebo. No real substance. Some of it can actually do harm by compromising macOS security.
Personally I do not think Whatevergreen is overriding the certificate fail, but I'd love to be proved wrong!
So, no help, I'm sorry, but if your system is working the same as ever, great!