It is a lifetime licence. the ‘one year’ is for updates or downloads or something. I had the previous version of this and it was well over a year since I got it and it was still working fine, yet if you login to my ‘account’ it says ‘unavailable’
I have created a new account for this download and in the account it has an ‘i’ (for information) next to the words “Available until’ and if you click on the ‘i’ it says:
“Refers to your download, update and support subscription only. Full version is valid for unlimited time.”