Thepkiguy Your comment and observation is a giant spot on! All these oversimplified migration guides from MSFT employees, that are simple next-next-finish-YouAreDone are extremely misleading. An advanced PKI in production needs a very careful planning, otherwise you can search for new job the next week... These blog posts wont reveal such depths, and thats the dangerous part if you read this post.
How about multi-tier PKI? Oopsie, havent thought about that. How to handle offline rootca? Hmm, I forgot that. Sha1 to Sha2 key migrarion? Ooo... And the list goes on and on and on and on and on abd on... Hint: there is no recent MSPRESS book about Windows PKI since Brian Komars 2008 book (yep, 10yrs old, and doesnt handle many PKI and crypto fundamentals at all, that is required for the windows admin to even understand what they are doing with that sha1->sha2 change etc.)