But when we dig a little deeper...
We see that they are not identical:
The first (top) one covers:
The last (bottom) one covers:
So, as you see, they don't "cover the exact same set of names" and thus are NOT considered as related (the first isn't a successful renewal of the other - it is a new/separate cert).
I guess... learn.
Learn to better read and understand such email.
Everything that I did and pointed to should be contained therein.
[if it doesn't seem that way to you and you think it should be better written, maybe you could help by rewording it or expanding that wording]