Also...
> When you purchase a domain name through Njalla, we own it for you. However, the agreement between us grants you full usage rights to the domain. Whenever you want to, you can transfer the ownership to yourself or some other party.
No?
The ownership is a hack to workaround for some legal issues (e.g. for .es domains you're not allowed WHOIS privacy). Although post-GDPR most whois servers dramatically restricted public access, so maybe it's less important now.