It would be a "classic reverse buyout" if DigiCert was going to continue to operate the Symantec CA infrastructure. If it is not, then Google and Mozilla will have accomplished their most important objective, which is the elimination of insecure certificate issuers in current operation.
You clearly have other objectives you would like Google and Mozilla to accomplish for you, and I probably agree with many of them, but let's try to stay focused here.
And now the same people who made that shitty infrastructure will control a large chunk of the business that created what was once (probably) a perfectly good one -- and likely make the same shit decisions that made their old one shit as well making digicerts' infrastructure worse, and eventually probably shit as well.
You clearly have other objectives you would like Google and Mozilla to accomplish for you, and I probably agree with many of them, but let's try to stay focused here.