I kind of understand this decision. Users forget their account password and lock themselves out. Then they complain about Windows loosing all their data. With an online account they can reset their password via mail, etc.
There definitely should be an option to encrypt it like the in the pro version, but then you could also just buy the pro version (then you can also disable auto-updates...). It's not really expensive in the EU.
Is there an available Pro update for arm64? Heck, I couldn't even find an install image for the version I have, and for some reason, Windows reset doesn't work, so I hope Windows won't hose itself ever on that machine, because it will then be a brick.
There definitely should be an option to encrypt it like the in the pro version, but then you could also just buy the pro version (then you can also disable auto-updates...). It's not really expensive in the EU.