The marketing of it as "looks and feels like Windows 11!" is probably the biggest hook, if one can assume the majority of the 780k are non-powerusers who are wary about the end of Windows 10's support, and getting pwned on the Internet...
Ironic.. Stay on Windows 10 and risk getting your data stolen through unpatched exploits, or throw away your perfectly good computer and contribute to the climate disaster, get Windows 11, and lose sovereignty over your data to Microsoft...