I don't have detailed knowledge of the project but from memory, the proposition was to leapfrog the govTech infrastructure needed for land registries. Traditional infrastructure can be expensive to maintain and in many regions the paperwork is still just that; paper.

A move from paper copies to a digital format would already be a good enough solution, which I think is your point, but here there is an opportunistic use of a single tool to avoid the costs of a couple of servers with remote backups times the number of locations needed for full coverage.

edit: I was responding to the wrong thread but I'll leave it anyway. This refers to the use of blockchain for land registry in Ghana.