Symantec made a complete mess (and bad business decision) when naming - and renaming this product. But to answer your question: Yes, they are one and the same.
The list of autoremoved products shows the ones that are supported. If V9 is not listed, you must remove it manually.
Autoremoval of listed products does work when using the MSI via GPO.
As for the SEPM (question 2 above) the license you used to access the download page should have linked the SEPM edition to your cloud account. Contact support if you think otherwise.